* [PATCH v3 0/5] ARM: davinci: fix UART clock enabling
@ 2013-06-19 9:15 ` Manjunathappa, Prakash
0 siblings, 0 replies; 24+ messages in thread
From: Manjunathappa, Prakash @ 2013-06-19 9:15 UTC (permalink / raw)
To: davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/,
linux-serial-u79uwXL29TY76Z2rM5mHXA
Cc: linux-lFZ/pmaqli7XmaaqVzeoHQ,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ,
rob.herring-bsGFqQB8/DxBDgjK7y7TUQ,
grant.likely-s3s/WqlpOiPyB63q8FvJNQ, hs-ynQEQJNshbs,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
Patch series addresses below issues:
1) Do clk_get on dev_id when there is single clock for a module
2) Fix garbled UART log with DT kernel on da850-evm.
3) Cleanup of serila platform code.
Applies on top of v3.10-rc6 of Linus's.
Tested on da850-evm. Able to see proper bootup log and console on UART2.
Since v2:
1) Added missing sentinel value for struct plat_serial8250_port, .flags = 0.
2) Added Sentinel value for struct platform_device serial_device array's with.
3) Move serial_device array declarations to davinci.h instead of globally
visible serial.h
Since v1:
Change names of platform data names appropriately.
Added 5/5: platform code cleanup.
Manjunathappa, Prakash (5):
ARM: davinci: uart: move to devid based clk_get
ARM: davinci: da850: override device name of UART in DT kernel
ARM: davinci: da850: do not specify clock_frequency for UART DT node
ARM: davinci: da8xx: remove da8xx_uart_clk_enable
ARM: davinci: serial: platform code cleanup
arch/arm/boot/dts/da850.dtsi | 3 -
arch/arm/mach-davinci/board-da830-evm.c | 6 +--
arch/arm/mach-davinci/board-da850-evm.c | 6 +--
arch/arm/mach-davinci/board-dm355-evm.c | 6 +--
arch/arm/mach-davinci/board-dm355-leopard.c | 6 +--
arch/arm/mach-davinci/board-dm365-evm.c | 6 +--
arch/arm/mach-davinci/board-dm644x-evm.c | 6 +--
arch/arm/mach-davinci/board-dm646x-evm.c | 6 +--
arch/arm/mach-davinci/board-mityomapl138.c | 6 +--
arch/arm/mach-davinci/board-neuros-osd2.c | 6 +--
arch/arm/mach-davinci/board-omapl138-hawk.c | 6 +--
arch/arm/mach-davinci/board-sffsdr.c | 7 +--
arch/arm/mach-davinci/da830.c | 7 +--
arch/arm/mach-davinci/da850.c | 7 +--
arch/arm/mach-davinci/da8xx-dt.c | 11 +----
arch/arm/mach-davinci/davinci.h | 5 ++
arch/arm/mach-davinci/devices-da8xx.c | 42 +++++++++++++++---
arch/arm/mach-davinci/devices-tnetv107x.c | 39 ++++++++++++++---
arch/arm/mach-davinci/dm355.c | 51 +++++++++++++++++-----
arch/arm/mach-davinci/dm365.c | 37 +++++++++++-----
arch/arm/mach-davinci/dm644x.c | 51 +++++++++++++++++-----
arch/arm/mach-davinci/dm646x.c | 51 +++++++++++++++++-----
arch/arm/mach-davinci/include/mach/common.h | 1 -
arch/arm/mach-davinci/include/mach/da8xx.h | 2 +-
arch/arm/mach-davinci/include/mach/serial.h | 10 +---
arch/arm/mach-davinci/include/mach/tnetv107x.h | 3 +-
arch/arm/mach-davinci/serial.c | 54 +++++++++---------------
arch/arm/mach-davinci/tnetv107x.c | 8 ++--
28 files changed, 265 insertions(+), 184 deletions(-)
--
1.7.4.1
^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH v3 0/5] ARM: davinci: fix UART clock enabling
@ 2013-06-19 9:15 ` Manjunathappa, Prakash
0 siblings, 0 replies; 24+ messages in thread
From: Manjunathappa, Prakash @ 2013-06-19 9:15 UTC (permalink / raw)
To: linux-arm-kernel
Patch series addresses below issues:
1) Do clk_get on dev_id when there is single clock for a module
2) Fix garbled UART log with DT kernel on da850-evm.
3) Cleanup of serila platform code.
Applies on top of v3.10-rc6 of Linus's.
Tested on da850-evm. Able to see proper bootup log and console on UART2.
Since v2:
1) Added missing sentinel value for struct plat_serial8250_port, .flags = 0.
2) Added Sentinel value for struct platform_device serial_device array's with.
3) Move serial_device array declarations to davinci.h instead of globally
visible serial.h
Since v1:
Change names of platform data names appropriately.
Added 5/5: platform code cleanup.
Manjunathappa, Prakash (5):
ARM: davinci: uart: move to devid based clk_get
ARM: davinci: da850: override device name of UART in DT kernel
ARM: davinci: da850: do not specify clock_frequency for UART DT node
ARM: davinci: da8xx: remove da8xx_uart_clk_enable
ARM: davinci: serial: platform code cleanup
arch/arm/boot/dts/da850.dtsi | 3 -
arch/arm/mach-davinci/board-da830-evm.c | 6 +--
arch/arm/mach-davinci/board-da850-evm.c | 6 +--
arch/arm/mach-davinci/board-dm355-evm.c | 6 +--
arch/arm/mach-davinci/board-dm355-leopard.c | 6 +--
arch/arm/mach-davinci/board-dm365-evm.c | 6 +--
arch/arm/mach-davinci/board-dm644x-evm.c | 6 +--
arch/arm/mach-davinci/board-dm646x-evm.c | 6 +--
arch/arm/mach-davinci/board-mityomapl138.c | 6 +--
arch/arm/mach-davinci/board-neuros-osd2.c | 6 +--
arch/arm/mach-davinci/board-omapl138-hawk.c | 6 +--
arch/arm/mach-davinci/board-sffsdr.c | 7 +--
arch/arm/mach-davinci/da830.c | 7 +--
arch/arm/mach-davinci/da850.c | 7 +--
arch/arm/mach-davinci/da8xx-dt.c | 11 +----
arch/arm/mach-davinci/davinci.h | 5 ++
arch/arm/mach-davinci/devices-da8xx.c | 42 +++++++++++++++---
arch/arm/mach-davinci/devices-tnetv107x.c | 39 ++++++++++++++---
arch/arm/mach-davinci/dm355.c | 51 +++++++++++++++++-----
arch/arm/mach-davinci/dm365.c | 37 +++++++++++-----
arch/arm/mach-davinci/dm644x.c | 51 +++++++++++++++++-----
arch/arm/mach-davinci/dm646x.c | 51 +++++++++++++++++-----
arch/arm/mach-davinci/include/mach/common.h | 1 -
arch/arm/mach-davinci/include/mach/da8xx.h | 2 +-
arch/arm/mach-davinci/include/mach/serial.h | 10 +---
arch/arm/mach-davinci/include/mach/tnetv107x.h | 3 +-
arch/arm/mach-davinci/serial.c | 54 +++++++++---------------
arch/arm/mach-davinci/tnetv107x.c | 8 ++--
28 files changed, 265 insertions(+), 184 deletions(-)
--
1.7.4.1
^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH v3 1/5] ARM: davinci: uart: move to devid based clk_get
2013-06-19 9:15 ` Manjunathappa, Prakash
@ 2013-06-19 9:15 ` Manjunathappa, Prakash
-1 siblings, 0 replies; 24+ messages in thread
From: Manjunathappa, Prakash @ 2013-06-19 9:15 UTC (permalink / raw)
To: davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/,
linux-serial-u79uwXL29TY76Z2rM5mHXA
Cc: linux-lFZ/pmaqli7XmaaqVzeoHQ,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ,
rob.herring-bsGFqQB8/DxBDgjK7y7TUQ,
grant.likely-s3s/WqlpOiPyB63q8FvJNQ, hs-ynQEQJNshbs,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
For modules having single clock, clk_get should be done with dev_id.
But current davinci implementation handles multiple instances
of the UART devices with single platform_device_register. Hence clk_get
is based on con_id rather than dev_id, this is not correct. Do
platform_device_register for each instance and clk_get on dev_id.
Signed-off-by: Manjunathappa, Prakash <prakash.pm-l0cyMroinI0@public.gmane.org>
---
Since v2:
1) Added missing sentinel value for struct plat_serial8250_port, .flags = 0.
2) Added sentinel value for struct platform_device serial_device array's.
arch/arm/mach-davinci/da830.c | 8 ++--
arch/arm/mach-davinci/da850.c | 8 ++--
arch/arm/mach-davinci/devices-da8xx.c | 42 ++++++++++++++++---
arch/arm/mach-davinci/devices-tnetv107x.c | 37 ++++++++++++++---
arch/arm/mach-davinci/dm355.c | 52 ++++++++++++++++++-----
arch/arm/mach-davinci/dm365.c | 38 ++++++++++++-----
arch/arm/mach-davinci/dm644x.c | 52 ++++++++++++++++++-----
arch/arm/mach-davinci/dm646x.c | 52 ++++++++++++++++++-----
arch/arm/mach-davinci/include/mach/da8xx.h | 2 +-
arch/arm/mach-davinci/include/mach/tnetv107x.h | 2 +-
arch/arm/mach-davinci/serial.c | 19 +++++---
arch/arm/mach-davinci/tnetv107x.c | 8 ++--
12 files changed, 239 insertions(+), 81 deletions(-)
diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
index abbaf02..a3ffd52 100644
--- a/arch/arm/mach-davinci/da830.c
+++ b/arch/arm/mach-davinci/da830.c
@@ -395,9 +395,9 @@ static struct clk_lookup da830_clks[] = {
CLK(NULL, "tptc0", &tptc0_clk),
CLK(NULL, "tptc1", &tptc1_clk),
CLK("da830-mmc.0", NULL, &mmcsd_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("spi_davinci.0", NULL, &spi0_clk),
CLK("spi_davinci.1", NULL, &spi1_clk),
CLK(NULL, "ecap0", &ecap0_clk),
@@ -1199,7 +1199,7 @@ static struct davinci_soc_info davinci_soc_info_da830 = {
.gpio_base = DA8XX_GPIO_BASE,
.gpio_num = 128,
.gpio_irq = IRQ_DA8XX_GPIO0,
- .serial_dev = &da8xx_serial_device,
+ .serial_dev = da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
};
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 4d69338..7ce691c 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -451,9 +451,9 @@ static struct clk_lookup da850_clks[] = {
CLK(NULL, "tpcc1", &tpcc1_clk),
CLK(NULL, "tptc2", &tptc2_clk),
CLK("pruss_uio", "pruss", &pruss_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK(NULL, "aintc", &aintc_clk),
CLK(NULL, "gpio", &gpio_clk),
CLK("i2c_davinci.2", NULL, &i2c1_clk),
@@ -1301,7 +1301,7 @@ static struct davinci_soc_info davinci_soc_info_da850 = {
.gpio_base = DA8XX_GPIO_BASE,
.gpio_num = 144,
.gpio_irq = IRQ_DA8XX_GPIO0,
- .serial_dev = &da8xx_serial_device,
+ .serial_dev = da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
.sram_dma = DA8XX_SHARED_RAM_BASE,
.sram_len = SZ_128K,
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index bf57252..e09647c 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -67,7 +67,7 @@
void __iomem *da8xx_syscfg0_base;
void __iomem *da8xx_syscfg1_base;
-static struct plat_serial8250_port da8xx_serial_pdata[] = {
+static struct plat_serial8250_port da8xx_serial0_pdata[] = {
{
.mapbase = DA8XX_UART0_BASE,
.irq = IRQ_DA8XX_UARTINT0,
@@ -77,6 +77,11 @@ static struct plat_serial8250_port da8xx_serial_pdata[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port da8xx_serial1_pdata[] = {
+ {
.mapbase = DA8XX_UART1_BASE,
.irq = IRQ_DA8XX_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -85,6 +90,11 @@ static struct plat_serial8250_port da8xx_serial_pdata[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port da8xx_serial2_pdata[] = {
+ {
.mapbase = DA8XX_UART2_BASE,
.irq = IRQ_DA8XX_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -94,15 +104,33 @@ static struct plat_serial8250_port da8xx_serial_pdata[] = {
},
{
.flags = 0,
- },
+ }
};
-struct platform_device da8xx_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = da8xx_serial_pdata,
+struct platform_device da8xx_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = da8xx_serial0_pdata,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = da8xx_serial1_pdata,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = da8xx_serial2_pdata,
+ }
+ },
+ {
+ }
};
static const s8 da8xx_queue_tc_mapping[][2] = {
diff --git a/arch/arm/mach-davinci/devices-tnetv107x.c b/arch/arm/mach-davinci/devices-tnetv107x.c
index cfb194d..d2d8db0 100644
--- a/arch/arm/mach-davinci/devices-tnetv107x.c
+++ b/arch/arm/mach-davinci/devices-tnetv107x.c
@@ -126,7 +126,7 @@ static struct platform_device edma_device = {
.dev.platform_data = tnetv107x_edma_info,
};
-static struct plat_serial8250_port serial_data[] = {
+static struct plat_serial8250_port serial0_platform_data[] = {
{
.mapbase = TNETV107X_UART0_BASE,
.irq = IRQ_TNETV107X_UART0,
@@ -137,6 +137,11 @@ static struct plat_serial8250_port serial_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port serial1_platform_data[] = {
+ {
.mapbase = TNETV107X_UART1_BASE,
.irq = IRQ_TNETV107X_UART1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -146,6 +151,11 @@ static struct plat_serial8250_port serial_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port serial2_platform_data[] = {
+ {
.mapbase = TNETV107X_UART2_BASE,
.irq = IRQ_TNETV107X_UART2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -156,13 +166,28 @@ static struct plat_serial8250_port serial_data[] = {
},
{
.flags = 0,
- },
+ }
};
-struct platform_device tnetv107x_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev.platform_data = serial_data,
+
+struct platform_device tnetv107x_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev.platform_data = serial0_platform_data,
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev.platform_data = serial1_platform_data,
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev.platform_data = serial2_platform_data,
+ },
+ {
+ }
};
static struct resource mmc0_resources[] = {
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index a11034a..1078cd6 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -357,9 +357,9 @@ static struct clk_lookup dm355_clks[] = {
CLK(NULL, "clkout3", &clkout3_clk),
CLK(NULL, "arm", &arm_clk),
CLK(NULL, "mjcp", &mjcp_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK("davinci-mcbsp.0", NULL, &asp0_clk),
CLK("davinci-mcbsp.1", NULL, &asp1_clk),
@@ -922,7 +922,7 @@ static struct davinci_timer_info dm355_timer_info = {
.clocksource_id = T0_TOP,
};
-static struct plat_serial8250_port dm355_serial_platform_data[] = {
+static struct plat_serial8250_port dm355_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -932,6 +932,11 @@ static struct plat_serial8250_port dm355_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm355_serial1_platform_data[] = {
+ {
.mapbase = DAVINCI_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -940,6 +945,11 @@ static struct plat_serial8250_port dm355_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm355_serial2_platform_data[] = {
+ {
.mapbase = DM355_UART2_BASE,
.irq = IRQ_DM355_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -948,16 +958,34 @@ static struct plat_serial8250_port dm355_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm355_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm355_serial_platform_data,
+static struct platform_device dm355_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm355_serial0_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm355_serial1_platform_data,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = dm355_serial2_platform_data,
+ }
+ },
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm355 = {
@@ -981,7 +1009,7 @@ static struct davinci_soc_info davinci_soc_info_dm355 = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 104,
.gpio_irq = IRQ_DM355_GPIOBNK0,
- .serial_dev = &dm355_serial_device,
+ .serial_dev = dm355_serial_device,
.sram_dma = 0x00010000,
.sram_len = SZ_32K,
};
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 40fa4fe..6a78856 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -455,8 +455,8 @@ static struct clk_lookup dm365_clks[] = {
CLK("vpss", "master", &vpss_master_clk),
CLK("vpss", "slave", &vpss_slave_clk),
CLK(NULL, "arm", &arm_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK("da830-mmc.0", NULL, &mmcsd0_clk),
CLK("da830-mmc.1", NULL, &mmcsd1_clk),
@@ -1041,7 +1041,7 @@ static struct davinci_timer_info dm365_timer_info = {
#define DM365_UART1_BASE (IO_PHYS + 0x106000)
-static struct plat_serial8250_port dm365_serial_platform_data[] = {
+static struct plat_serial8250_port dm365_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -1051,6 +1051,11 @@ static struct plat_serial8250_port dm365_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm365_serial1_platform_data[] = {
+ {
.mapbase = DM365_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -1059,16 +1064,27 @@ static struct plat_serial8250_port dm365_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm365_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm365_serial_platform_data,
+static struct platform_device dm365_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm365_serial0_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm365_serial1_platform_data,
+ }
},
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm365 = {
@@ -1093,7 +1109,7 @@ static struct davinci_soc_info davinci_soc_info_dm365 = {
.gpio_num = 104,
.gpio_irq = IRQ_DM365_GPIO0,
.gpio_unbanked = 8, /* really 16 ... skip muxed GPIOs */
- .serial_dev = &dm365_serial_device,
+ .serial_dev = dm365_serial_device,
.emac_pdata = &dm365_emac_pdata,
.sram_dma = 0x00010000,
.sram_len = SZ_32K,
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 4d37d3e..1129ff1 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -303,9 +303,9 @@ static struct clk_lookup dm644x_clks[] = {
CLK("vpss", "master", &vpss_master_clk),
CLK("vpss", "slave", &vpss_slave_clk),
CLK(NULL, "arm", &arm_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("davinci_emac.1", NULL, &emac_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK("palm_bk3710", NULL, &ide_clk),
@@ -813,7 +813,7 @@ static struct davinci_timer_info dm644x_timer_info = {
.clocksource_id = T0_TOP,
};
-static struct plat_serial8250_port dm644x_serial_platform_data[] = {
+static struct plat_serial8250_port dm644x_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -823,6 +823,11 @@ static struct plat_serial8250_port dm644x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm644x_serial1_platform_data[] = {
+ {
.mapbase = DAVINCI_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -831,6 +836,11 @@ static struct plat_serial8250_port dm644x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm644x_serial2_platform_data[] = {
+ {
.mapbase = DAVINCI_UART2_BASE,
.irq = IRQ_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -839,16 +849,34 @@ static struct plat_serial8250_port dm644x_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm644x_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm644x_serial_platform_data,
+static struct platform_device dm644x_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm644x_serial0_platform_data,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm644x_serial1_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = dm644x_serial2_platform_data,
+ }
+ },
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm644x = {
@@ -872,7 +900,7 @@ static struct davinci_soc_info davinci_soc_info_dm644x = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 71,
.gpio_irq = IRQ_GPIOBNK0,
- .serial_dev = &dm644x_serial_device,
+ .serial_dev = dm644x_serial_device,
.emac_pdata = &dm644x_emac_pdata,
.sram_dma = 0x00008000,
.sram_len = SZ_16K,
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index ac7b431..d3fd760 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -342,9 +342,9 @@ static struct clk_lookup dm646x_clks[] = {
CLK(NULL, "edma_tc1", &edma_tc1_clk),
CLK(NULL, "edma_tc2", &edma_tc2_clk),
CLK(NULL, "edma_tc3", &edma_tc3_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK(NULL, "gpio", &gpio_clk),
CLK("davinci-mcasp.0", NULL, &mcasp0_clk),
@@ -790,7 +790,7 @@ static struct davinci_timer_info dm646x_timer_info = {
.clocksource_id = T0_TOP,
};
-static struct plat_serial8250_port dm646x_serial_platform_data[] = {
+static struct plat_serial8250_port dm646x_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -800,6 +800,11 @@ static struct plat_serial8250_port dm646x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm646x_serial1_platform_data[] = {
+ {
.mapbase = DAVINCI_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -808,6 +813,11 @@ static struct plat_serial8250_port dm646x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm646x_serial2_platform_data[] = {
+ {
.mapbase = DAVINCI_UART2_BASE,
.irq = IRQ_DM646X_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -816,16 +826,34 @@ static struct plat_serial8250_port dm646x_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm646x_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm646x_serial_platform_data,
+static struct platform_device dm646x_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm646x_serial0_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm646x_serial1_platform_data,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = dm646x_serial2_platform_data,
+ }
+ },
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm646x = {
@@ -849,7 +877,7 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 43, /* Only 33 usable */
.gpio_irq = IRQ_DM646X_GPIOBNK0,
- .serial_dev = &dm646x_serial_device,
+ .serial_dev = dm646x_serial_device,
.emac_pdata = &dm646x_emac_pdata,
.sram_dma = 0x10010000,
.sram_len = SZ_32K,
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index 2e1c9ea..71aa7d0 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -110,7 +110,7 @@ void da8xx_restart(char mode, const char *cmd);
void da8xx_rproc_reserve_cma(void);
int da8xx_register_rproc(void);
-extern struct platform_device da8xx_serial_device;
+extern struct platform_device da8xx_serial_device[];
extern struct emac_platform_data da8xx_emac_pdata;
extern struct da8xx_lcdc_platform_data sharp_lcd035q3dg01_pdata;
extern struct da8xx_lcdc_platform_data sharp_lk043t1dg01_pdata;
diff --git a/arch/arm/mach-davinci/include/mach/tnetv107x.h b/arch/arm/mach-davinci/include/mach/tnetv107x.h
index 1656a02..07948a5 100644
--- a/arch/arm/mach-davinci/include/mach/tnetv107x.h
+++ b/arch/arm/mach-davinci/include/mach/tnetv107x.h
@@ -49,7 +49,7 @@ struct tnetv107x_device_info {
};
extern struct platform_device tnetv107x_wdt_device;
-extern struct platform_device tnetv107x_serial_device;
+extern struct platform_device tnetv107x_serial_device[];
extern void __init tnetv107x_init(void);
extern void __init tnetv107x_devices_init(struct tnetv107x_device_info *);
diff --git a/arch/arm/mach-davinci/serial.c b/arch/arm/mach-davinci/serial.c
index f262581..57e6150 100644
--- a/arch/arm/mach-davinci/serial.c
+++ b/arch/arm/mach-davinci/serial.c
@@ -76,7 +76,7 @@ int __init davinci_serial_setup_clk(unsigned instance, unsigned int *rate)
char name[16];
struct clk *clk;
struct davinci_soc_info *soc_info = &davinci_soc_info;
- struct device *dev = &soc_info->serial_dev->dev;
+ struct device *dev = &soc_info->serial_dev[instance].dev;
sprintf(name, "uart%d", instance);
clk = clk_get(dev, name);
@@ -96,19 +96,25 @@ int __init davinci_serial_setup_clk(unsigned instance, unsigned int *rate)
int __init davinci_serial_init(struct davinci_uart_config *info)
{
- int i, ret;
+ int i, ret = 0;
struct davinci_soc_info *soc_info = &davinci_soc_info;
- struct device *dev = &soc_info->serial_dev->dev;
- struct plat_serial8250_port *p = dev->platform_data;
+ struct device *dev;
+ struct plat_serial8250_port *p;
/*
* Make sure the serial ports are muxed on at this point.
* You have to mux them off in device drivers later on if not needed.
*/
- for (i = 0; p->flags; i++, p++) {
+ for (i = 0; soc_info->serial_dev[i].dev.platform_data != NULL; i++) {
+ dev = &soc_info->serial_dev[i].dev;
+ p = dev->platform_data;
if (!(info->enabled_uarts & (1 << i)))
continue;
+ ret = platform_device_register(&soc_info->serial_dev[i]);
+ if (ret)
+ continue;
+
ret = davinci_serial_setup_clk(i, &p->uartclk);
if (ret)
continue;
@@ -125,6 +131,5 @@ int __init davinci_serial_init(struct davinci_uart_config *info)
if (p->membase && p->type != PORT_AR7)
davinci_serial_reset(p);
}
-
- return platform_device_register(soc_info->serial_dev);
+ return ret;
}
diff --git a/arch/arm/mach-davinci/tnetv107x.c b/arch/arm/mach-davinci/tnetv107x.c
index 3b2a70d..d8a9516 100644
--- a/arch/arm/mach-davinci/tnetv107x.c
+++ b/arch/arm/mach-davinci/tnetv107x.c
@@ -263,7 +263,7 @@ static struct clk_lookup clks[] = {
CLK(NULL, "clk_chipcfg", &clk_chipcfg),
CLK("tnetv107x-ts.0", NULL, &clk_tsc),
CLK(NULL, "clk_rom", &clk_rom),
- CLK(NULL, "uart2", &clk_uart2),
+ CLK("serial8250.2", NULL, &clk_uart2),
CLK(NULL, "clk_pktsec", &clk_pktsec),
CLK("tnetv107x-rng.0", NULL, &clk_rng),
CLK("tnetv107x-pka.0", NULL, &clk_pka),
@@ -273,8 +273,8 @@ static struct clk_lookup clks[] = {
CLK(NULL, "clk_gpio", &clk_gpio),
CLK(NULL, "clk_mdio", &clk_mdio),
CLK("dm6441-mmc.0", NULL, &clk_sdio0),
- CLK(NULL, "uart0", &clk_uart0),
- CLK(NULL, "uart1", &clk_uart1),
+ CLK("serial8250.0", NULL, &clk_uart0),
+ CLK("serial8250.1", NULL, &clk_uart1),
CLK(NULL, "timer0", &clk_timer0),
CLK(NULL, "timer1", &clk_timer1),
CLK("tnetv107x_wdt.0", NULL, &clk_wdt_arm),
@@ -756,7 +756,7 @@ static struct davinci_soc_info tnetv107x_soc_info = {
.gpio_type = GPIO_TYPE_TNETV107X,
.gpio_num = TNETV107X_N_GPIO,
.timer_info = &timer_info,
- .serial_dev = &tnetv107x_serial_device,
+ .serial_dev = tnetv107x_serial_device,
};
void __init tnetv107x_init(void)
--
1.7.4.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v3 1/5] ARM: davinci: uart: move to devid based clk_get
@ 2013-06-19 9:15 ` Manjunathappa, Prakash
0 siblings, 0 replies; 24+ messages in thread
From: Manjunathappa, Prakash @ 2013-06-19 9:15 UTC (permalink / raw)
To: linux-arm-kernel
For modules having single clock, clk_get should be done with dev_id.
But current davinci implementation handles multiple instances
of the UART devices with single platform_device_register. Hence clk_get
is based on con_id rather than dev_id, this is not correct. Do
platform_device_register for each instance and clk_get on dev_id.
Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
---
Since v2:
1) Added missing sentinel value for struct plat_serial8250_port, .flags = 0.
2) Added sentinel value for struct platform_device serial_device array's.
arch/arm/mach-davinci/da830.c | 8 ++--
arch/arm/mach-davinci/da850.c | 8 ++--
arch/arm/mach-davinci/devices-da8xx.c | 42 ++++++++++++++++---
arch/arm/mach-davinci/devices-tnetv107x.c | 37 ++++++++++++++---
arch/arm/mach-davinci/dm355.c | 52 ++++++++++++++++++-----
arch/arm/mach-davinci/dm365.c | 38 ++++++++++++-----
arch/arm/mach-davinci/dm644x.c | 52 ++++++++++++++++++-----
arch/arm/mach-davinci/dm646x.c | 52 ++++++++++++++++++-----
arch/arm/mach-davinci/include/mach/da8xx.h | 2 +-
arch/arm/mach-davinci/include/mach/tnetv107x.h | 2 +-
arch/arm/mach-davinci/serial.c | 19 +++++---
arch/arm/mach-davinci/tnetv107x.c | 8 ++--
12 files changed, 239 insertions(+), 81 deletions(-)
diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
index abbaf02..a3ffd52 100644
--- a/arch/arm/mach-davinci/da830.c
+++ b/arch/arm/mach-davinci/da830.c
@@ -395,9 +395,9 @@ static struct clk_lookup da830_clks[] = {
CLK(NULL, "tptc0", &tptc0_clk),
CLK(NULL, "tptc1", &tptc1_clk),
CLK("da830-mmc.0", NULL, &mmcsd_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("spi_davinci.0", NULL, &spi0_clk),
CLK("spi_davinci.1", NULL, &spi1_clk),
CLK(NULL, "ecap0", &ecap0_clk),
@@ -1199,7 +1199,7 @@ static struct davinci_soc_info davinci_soc_info_da830 = {
.gpio_base = DA8XX_GPIO_BASE,
.gpio_num = 128,
.gpio_irq = IRQ_DA8XX_GPIO0,
- .serial_dev = &da8xx_serial_device,
+ .serial_dev = da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
};
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 4d69338..7ce691c 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -451,9 +451,9 @@ static struct clk_lookup da850_clks[] = {
CLK(NULL, "tpcc1", &tpcc1_clk),
CLK(NULL, "tptc2", &tptc2_clk),
CLK("pruss_uio", "pruss", &pruss_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK(NULL, "aintc", &aintc_clk),
CLK(NULL, "gpio", &gpio_clk),
CLK("i2c_davinci.2", NULL, &i2c1_clk),
@@ -1301,7 +1301,7 @@ static struct davinci_soc_info davinci_soc_info_da850 = {
.gpio_base = DA8XX_GPIO_BASE,
.gpio_num = 144,
.gpio_irq = IRQ_DA8XX_GPIO0,
- .serial_dev = &da8xx_serial_device,
+ .serial_dev = da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
.sram_dma = DA8XX_SHARED_RAM_BASE,
.sram_len = SZ_128K,
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index bf57252..e09647c 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -67,7 +67,7 @@
void __iomem *da8xx_syscfg0_base;
void __iomem *da8xx_syscfg1_base;
-static struct plat_serial8250_port da8xx_serial_pdata[] = {
+static struct plat_serial8250_port da8xx_serial0_pdata[] = {
{
.mapbase = DA8XX_UART0_BASE,
.irq = IRQ_DA8XX_UARTINT0,
@@ -77,6 +77,11 @@ static struct plat_serial8250_port da8xx_serial_pdata[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port da8xx_serial1_pdata[] = {
+ {
.mapbase = DA8XX_UART1_BASE,
.irq = IRQ_DA8XX_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -85,6 +90,11 @@ static struct plat_serial8250_port da8xx_serial_pdata[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port da8xx_serial2_pdata[] = {
+ {
.mapbase = DA8XX_UART2_BASE,
.irq = IRQ_DA8XX_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -94,15 +104,33 @@ static struct plat_serial8250_port da8xx_serial_pdata[] = {
},
{
.flags = 0,
- },
+ }
};
-struct platform_device da8xx_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = da8xx_serial_pdata,
+struct platform_device da8xx_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = da8xx_serial0_pdata,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = da8xx_serial1_pdata,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = da8xx_serial2_pdata,
+ }
+ },
+ {
+ }
};
static const s8 da8xx_queue_tc_mapping[][2] = {
diff --git a/arch/arm/mach-davinci/devices-tnetv107x.c b/arch/arm/mach-davinci/devices-tnetv107x.c
index cfb194d..d2d8db0 100644
--- a/arch/arm/mach-davinci/devices-tnetv107x.c
+++ b/arch/arm/mach-davinci/devices-tnetv107x.c
@@ -126,7 +126,7 @@ static struct platform_device edma_device = {
.dev.platform_data = tnetv107x_edma_info,
};
-static struct plat_serial8250_port serial_data[] = {
+static struct plat_serial8250_port serial0_platform_data[] = {
{
.mapbase = TNETV107X_UART0_BASE,
.irq = IRQ_TNETV107X_UART0,
@@ -137,6 +137,11 @@ static struct plat_serial8250_port serial_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port serial1_platform_data[] = {
+ {
.mapbase = TNETV107X_UART1_BASE,
.irq = IRQ_TNETV107X_UART1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -146,6 +151,11 @@ static struct plat_serial8250_port serial_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port serial2_platform_data[] = {
+ {
.mapbase = TNETV107X_UART2_BASE,
.irq = IRQ_TNETV107X_UART2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -156,13 +166,28 @@ static struct plat_serial8250_port serial_data[] = {
},
{
.flags = 0,
- },
+ }
};
-struct platform_device tnetv107x_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev.platform_data = serial_data,
+
+struct platform_device tnetv107x_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev.platform_data = serial0_platform_data,
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev.platform_data = serial1_platform_data,
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev.platform_data = serial2_platform_data,
+ },
+ {
+ }
};
static struct resource mmc0_resources[] = {
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index a11034a..1078cd6 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -357,9 +357,9 @@ static struct clk_lookup dm355_clks[] = {
CLK(NULL, "clkout3", &clkout3_clk),
CLK(NULL, "arm", &arm_clk),
CLK(NULL, "mjcp", &mjcp_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK("davinci-mcbsp.0", NULL, &asp0_clk),
CLK("davinci-mcbsp.1", NULL, &asp1_clk),
@@ -922,7 +922,7 @@ static struct davinci_timer_info dm355_timer_info = {
.clocksource_id = T0_TOP,
};
-static struct plat_serial8250_port dm355_serial_platform_data[] = {
+static struct plat_serial8250_port dm355_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -932,6 +932,11 @@ static struct plat_serial8250_port dm355_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm355_serial1_platform_data[] = {
+ {
.mapbase = DAVINCI_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -940,6 +945,11 @@ static struct plat_serial8250_port dm355_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm355_serial2_platform_data[] = {
+ {
.mapbase = DM355_UART2_BASE,
.irq = IRQ_DM355_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -948,16 +958,34 @@ static struct plat_serial8250_port dm355_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm355_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm355_serial_platform_data,
+static struct platform_device dm355_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm355_serial0_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm355_serial1_platform_data,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = dm355_serial2_platform_data,
+ }
+ },
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm355 = {
@@ -981,7 +1009,7 @@ static struct davinci_soc_info davinci_soc_info_dm355 = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 104,
.gpio_irq = IRQ_DM355_GPIOBNK0,
- .serial_dev = &dm355_serial_device,
+ .serial_dev = dm355_serial_device,
.sram_dma = 0x00010000,
.sram_len = SZ_32K,
};
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 40fa4fe..6a78856 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -455,8 +455,8 @@ static struct clk_lookup dm365_clks[] = {
CLK("vpss", "master", &vpss_master_clk),
CLK("vpss", "slave", &vpss_slave_clk),
CLK(NULL, "arm", &arm_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK("da830-mmc.0", NULL, &mmcsd0_clk),
CLK("da830-mmc.1", NULL, &mmcsd1_clk),
@@ -1041,7 +1041,7 @@ static struct davinci_timer_info dm365_timer_info = {
#define DM365_UART1_BASE (IO_PHYS + 0x106000)
-static struct plat_serial8250_port dm365_serial_platform_data[] = {
+static struct plat_serial8250_port dm365_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -1051,6 +1051,11 @@ static struct plat_serial8250_port dm365_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm365_serial1_platform_data[] = {
+ {
.mapbase = DM365_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -1059,16 +1064,27 @@ static struct plat_serial8250_port dm365_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm365_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm365_serial_platform_data,
+static struct platform_device dm365_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm365_serial0_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm365_serial1_platform_data,
+ }
},
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm365 = {
@@ -1093,7 +1109,7 @@ static struct davinci_soc_info davinci_soc_info_dm365 = {
.gpio_num = 104,
.gpio_irq = IRQ_DM365_GPIO0,
.gpio_unbanked = 8, /* really 16 ... skip muxed GPIOs */
- .serial_dev = &dm365_serial_device,
+ .serial_dev = dm365_serial_device,
.emac_pdata = &dm365_emac_pdata,
.sram_dma = 0x00010000,
.sram_len = SZ_32K,
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 4d37d3e..1129ff1 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -303,9 +303,9 @@ static struct clk_lookup dm644x_clks[] = {
CLK("vpss", "master", &vpss_master_clk),
CLK("vpss", "slave", &vpss_slave_clk),
CLK(NULL, "arm", &arm_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("davinci_emac.1", NULL, &emac_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK("palm_bk3710", NULL, &ide_clk),
@@ -813,7 +813,7 @@ static struct davinci_timer_info dm644x_timer_info = {
.clocksource_id = T0_TOP,
};
-static struct plat_serial8250_port dm644x_serial_platform_data[] = {
+static struct plat_serial8250_port dm644x_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -823,6 +823,11 @@ static struct plat_serial8250_port dm644x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm644x_serial1_platform_data[] = {
+ {
.mapbase = DAVINCI_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -831,6 +836,11 @@ static struct plat_serial8250_port dm644x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm644x_serial2_platform_data[] = {
+ {
.mapbase = DAVINCI_UART2_BASE,
.irq = IRQ_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -839,16 +849,34 @@ static struct plat_serial8250_port dm644x_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm644x_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm644x_serial_platform_data,
+static struct platform_device dm644x_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm644x_serial0_platform_data,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm644x_serial1_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = dm644x_serial2_platform_data,
+ }
+ },
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm644x = {
@@ -872,7 +900,7 @@ static struct davinci_soc_info davinci_soc_info_dm644x = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 71,
.gpio_irq = IRQ_GPIOBNK0,
- .serial_dev = &dm644x_serial_device,
+ .serial_dev = dm644x_serial_device,
.emac_pdata = &dm644x_emac_pdata,
.sram_dma = 0x00008000,
.sram_len = SZ_16K,
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index ac7b431..d3fd760 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -342,9 +342,9 @@ static struct clk_lookup dm646x_clks[] = {
CLK(NULL, "edma_tc1", &edma_tc1_clk),
CLK(NULL, "edma_tc2", &edma_tc2_clk),
CLK(NULL, "edma_tc3", &edma_tc3_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK(NULL, "gpio", &gpio_clk),
CLK("davinci-mcasp.0", NULL, &mcasp0_clk),
@@ -790,7 +790,7 @@ static struct davinci_timer_info dm646x_timer_info = {
.clocksource_id = T0_TOP,
};
-static struct plat_serial8250_port dm646x_serial_platform_data[] = {
+static struct plat_serial8250_port dm646x_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -800,6 +800,11 @@ static struct plat_serial8250_port dm646x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm646x_serial1_platform_data[] = {
+ {
.mapbase = DAVINCI_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -808,6 +813,11 @@ static struct plat_serial8250_port dm646x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm646x_serial2_platform_data[] = {
+ {
.mapbase = DAVINCI_UART2_BASE,
.irq = IRQ_DM646X_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -816,16 +826,34 @@ static struct plat_serial8250_port dm646x_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm646x_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm646x_serial_platform_data,
+static struct platform_device dm646x_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm646x_serial0_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm646x_serial1_platform_data,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = dm646x_serial2_platform_data,
+ }
+ },
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm646x = {
@@ -849,7 +877,7 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 43, /* Only 33 usable */
.gpio_irq = IRQ_DM646X_GPIOBNK0,
- .serial_dev = &dm646x_serial_device,
+ .serial_dev = dm646x_serial_device,
.emac_pdata = &dm646x_emac_pdata,
.sram_dma = 0x10010000,
.sram_len = SZ_32K,
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index 2e1c9ea..71aa7d0 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -110,7 +110,7 @@ void da8xx_restart(char mode, const char *cmd);
void da8xx_rproc_reserve_cma(void);
int da8xx_register_rproc(void);
-extern struct platform_device da8xx_serial_device;
+extern struct platform_device da8xx_serial_device[];
extern struct emac_platform_data da8xx_emac_pdata;
extern struct da8xx_lcdc_platform_data sharp_lcd035q3dg01_pdata;
extern struct da8xx_lcdc_platform_data sharp_lk043t1dg01_pdata;
diff --git a/arch/arm/mach-davinci/include/mach/tnetv107x.h b/arch/arm/mach-davinci/include/mach/tnetv107x.h
index 1656a02..07948a5 100644
--- a/arch/arm/mach-davinci/include/mach/tnetv107x.h
+++ b/arch/arm/mach-davinci/include/mach/tnetv107x.h
@@ -49,7 +49,7 @@ struct tnetv107x_device_info {
};
extern struct platform_device tnetv107x_wdt_device;
-extern struct platform_device tnetv107x_serial_device;
+extern struct platform_device tnetv107x_serial_device[];
extern void __init tnetv107x_init(void);
extern void __init tnetv107x_devices_init(struct tnetv107x_device_info *);
diff --git a/arch/arm/mach-davinci/serial.c b/arch/arm/mach-davinci/serial.c
index f262581..57e6150 100644
--- a/arch/arm/mach-davinci/serial.c
+++ b/arch/arm/mach-davinci/serial.c
@@ -76,7 +76,7 @@ int __init davinci_serial_setup_clk(unsigned instance, unsigned int *rate)
char name[16];
struct clk *clk;
struct davinci_soc_info *soc_info = &davinci_soc_info;
- struct device *dev = &soc_info->serial_dev->dev;
+ struct device *dev = &soc_info->serial_dev[instance].dev;
sprintf(name, "uart%d", instance);
clk = clk_get(dev, name);
@@ -96,19 +96,25 @@ int __init davinci_serial_setup_clk(unsigned instance, unsigned int *rate)
int __init davinci_serial_init(struct davinci_uart_config *info)
{
- int i, ret;
+ int i, ret = 0;
struct davinci_soc_info *soc_info = &davinci_soc_info;
- struct device *dev = &soc_info->serial_dev->dev;
- struct plat_serial8250_port *p = dev->platform_data;
+ struct device *dev;
+ struct plat_serial8250_port *p;
/*
* Make sure the serial ports are muxed on at this point.
* You have to mux them off in device drivers later on if not needed.
*/
- for (i = 0; p->flags; i++, p++) {
+ for (i = 0; soc_info->serial_dev[i].dev.platform_data != NULL; i++) {
+ dev = &soc_info->serial_dev[i].dev;
+ p = dev->platform_data;
if (!(info->enabled_uarts & (1 << i)))
continue;
+ ret = platform_device_register(&soc_info->serial_dev[i]);
+ if (ret)
+ continue;
+
ret = davinci_serial_setup_clk(i, &p->uartclk);
if (ret)
continue;
@@ -125,6 +131,5 @@ int __init davinci_serial_init(struct davinci_uart_config *info)
if (p->membase && p->type != PORT_AR7)
davinci_serial_reset(p);
}
-
- return platform_device_register(soc_info->serial_dev);
+ return ret;
}
diff --git a/arch/arm/mach-davinci/tnetv107x.c b/arch/arm/mach-davinci/tnetv107x.c
index 3b2a70d..d8a9516 100644
--- a/arch/arm/mach-davinci/tnetv107x.c
+++ b/arch/arm/mach-davinci/tnetv107x.c
@@ -263,7 +263,7 @@ static struct clk_lookup clks[] = {
CLK(NULL, "clk_chipcfg", &clk_chipcfg),
CLK("tnetv107x-ts.0", NULL, &clk_tsc),
CLK(NULL, "clk_rom", &clk_rom),
- CLK(NULL, "uart2", &clk_uart2),
+ CLK("serial8250.2", NULL, &clk_uart2),
CLK(NULL, "clk_pktsec", &clk_pktsec),
CLK("tnetv107x-rng.0", NULL, &clk_rng),
CLK("tnetv107x-pka.0", NULL, &clk_pka),
@@ -273,8 +273,8 @@ static struct clk_lookup clks[] = {
CLK(NULL, "clk_gpio", &clk_gpio),
CLK(NULL, "clk_mdio", &clk_mdio),
CLK("dm6441-mmc.0", NULL, &clk_sdio0),
- CLK(NULL, "uart0", &clk_uart0),
- CLK(NULL, "uart1", &clk_uart1),
+ CLK("serial8250.0", NULL, &clk_uart0),
+ CLK("serial8250.1", NULL, &clk_uart1),
CLK(NULL, "timer0", &clk_timer0),
CLK(NULL, "timer1", &clk_timer1),
CLK("tnetv107x_wdt.0", NULL, &clk_wdt_arm),
@@ -756,7 +756,7 @@ static struct davinci_soc_info tnetv107x_soc_info = {
.gpio_type = GPIO_TYPE_TNETV107X,
.gpio_num = TNETV107X_N_GPIO,
.timer_info = &timer_info,
- .serial_dev = &tnetv107x_serial_device,
+ .serial_dev = tnetv107x_serial_device,
};
void __init tnetv107x_init(void)
--
1.7.4.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v3 2/5] ARM: davinci: da850: override device name of UART in DT kernel
2013-06-19 9:15 ` Manjunathappa, Prakash
@ 2013-06-19 9:15 ` Manjunathappa, Prakash
-1 siblings, 0 replies; 24+ messages in thread
From: Manjunathappa, Prakash @ 2013-06-19 9:15 UTC (permalink / raw)
To: davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/,
linux-serial-u79uwXL29TY76Z2rM5mHXA
Cc: linux-lFZ/pmaqli7XmaaqVzeoHQ,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ,
rob.herring-bsGFqQB8/DxBDgjK7y7TUQ,
grant.likely-s3s/WqlpOiPyB63q8FvJNQ, hs-ynQEQJNshbs,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
Populate OF_DEV_AUXDATA with desired device name so as to prevent
clk_get failures.
Signed-off-by: Manjunathappa, Prakash <prakash.pm-l0cyMroinI0@public.gmane.org>
---
arch/arm/mach-davinci/da8xx-dt.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c
index 961aea8..e429945 100644
--- a/arch/arm/mach-davinci/da8xx-dt.c
+++ b/arch/arm/mach-davinci/da8xx-dt.c
@@ -47,6 +47,9 @@ static struct of_dev_auxdata da850_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("ti,da850-ecap", 0x01f07000, "ecap", NULL),
OF_DEV_AUXDATA("ti,da850-ecap", 0x01f08000, "ecap", NULL),
OF_DEV_AUXDATA("ti,da830-spi", 0x01f0e000, "spi_davinci.1", NULL),
+ OF_DEV_AUXDATA("ns16550a", 0x01c42000, "serial8250.0", NULL),
+ OF_DEV_AUXDATA("ns16550a", 0x01d0c000, "serial8250.1", NULL),
+ OF_DEV_AUXDATA("ns16550a", 0x01d0d000, "serial8250.2", NULL),
{}
};
--
1.7.4.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v3 2/5] ARM: davinci: da850: override device name of UART in DT kernel
@ 2013-06-19 9:15 ` Manjunathappa, Prakash
0 siblings, 0 replies; 24+ messages in thread
From: Manjunathappa, Prakash @ 2013-06-19 9:15 UTC (permalink / raw)
To: linux-arm-kernel
Populate OF_DEV_AUXDATA with desired device name so as to prevent
clk_get failures.
Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
---
arch/arm/mach-davinci/da8xx-dt.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c
index 961aea8..e429945 100644
--- a/arch/arm/mach-davinci/da8xx-dt.c
+++ b/arch/arm/mach-davinci/da8xx-dt.c
@@ -47,6 +47,9 @@ static struct of_dev_auxdata da850_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("ti,da850-ecap", 0x01f07000, "ecap", NULL),
OF_DEV_AUXDATA("ti,da850-ecap", 0x01f08000, "ecap", NULL),
OF_DEV_AUXDATA("ti,da830-spi", 0x01f0e000, "spi_davinci.1", NULL),
+ OF_DEV_AUXDATA("ns16550a", 0x01c42000, "serial8250.0", NULL),
+ OF_DEV_AUXDATA("ns16550a", 0x01d0c000, "serial8250.1", NULL),
+ OF_DEV_AUXDATA("ns16550a", 0x01d0d000, "serial8250.2", NULL),
{}
};
--
1.7.4.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v3 3/5] ARM: davinci: da850: do not specify clock_frequency for UART DT node
2013-06-19 9:15 ` Manjunathappa, Prakash
@ 2013-06-19 9:15 ` Manjunathappa, Prakash
-1 siblings, 0 replies; 24+ messages in thread
From: Manjunathappa, Prakash @ 2013-06-19 9:15 UTC (permalink / raw)
To: davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/,
linux-serial-u79uwXL29TY76Z2rM5mHXA
Cc: linux-lFZ/pmaqli7XmaaqVzeoHQ,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ,
rob.herring-bsGFqQB8/DxBDgjK7y7TUQ,
grant.likely-s3s/WqlpOiPyB63q8FvJNQ, hs-ynQEQJNshbs,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
DT kernel on da850-evm comes up with garbled UART logs. This is because
of mismatch in actual module clock rate and rate specified(clock-frequency)
in DT blob. kernel should not assume or depend on bootloaders clock
configuration, instead let it find the clock rate at runtime.
Issue discussed here before arriving on this implementation:
"ARM: davinci: da850 evm: update clock rate for UART 1/2 DT nodes"
https://patchwork.kernel.org/patch/2162271/
Signed-off-by: Manjunathappa, Prakash <prakash.pm-l0cyMroinI0@public.gmane.org>
---
arch/arm/boot/dts/da850.dtsi | 3 ---
1 files changed, 0 insertions(+), 3 deletions(-)
diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index 2c88313..4d43046 100644
--- a/arch/arm/boot/dts/da850.dtsi
+++ b/arch/arm/boot/dts/da850.dtsi
@@ -129,7 +129,6 @@
serial0: serial@1c42000 {
compatible = "ns16550a";
reg = <0x42000 0x100>;
- clock-frequency = <150000000>;
reg-shift = <2>;
interrupts = <25>;
status = "disabled";
@@ -137,7 +136,6 @@
serial1: serial@1d0c000 {
compatible = "ns16550a";
reg = <0x10c000 0x100>;
- clock-frequency = <150000000>;
reg-shift = <2>;
interrupts = <53>;
status = "disabled";
@@ -145,7 +143,6 @@
serial2: serial@1d0d000 {
compatible = "ns16550a";
reg = <0x10d000 0x100>;
- clock-frequency = <150000000>;
reg-shift = <2>;
interrupts = <61>;
status = "disabled";
--
1.7.4.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v3 3/5] ARM: davinci: da850: do not specify clock_frequency for UART DT node
@ 2013-06-19 9:15 ` Manjunathappa, Prakash
0 siblings, 0 replies; 24+ messages in thread
From: Manjunathappa, Prakash @ 2013-06-19 9:15 UTC (permalink / raw)
To: linux-arm-kernel
DT kernel on da850-evm comes up with garbled UART logs. This is because
of mismatch in actual module clock rate and rate specified(clock-frequency)
in DT blob. kernel should not assume or depend on bootloaders clock
configuration, instead let it find the clock rate at runtime.
Issue discussed here before arriving on this implementation:
"ARM: davinci: da850 evm: update clock rate for UART 1/2 DT nodes"
https://patchwork.kernel.org/patch/2162271/
Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
---
arch/arm/boot/dts/da850.dtsi | 3 ---
1 files changed, 0 insertions(+), 3 deletions(-)
diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index 2c88313..4d43046 100644
--- a/arch/arm/boot/dts/da850.dtsi
+++ b/arch/arm/boot/dts/da850.dtsi
@@ -129,7 +129,6 @@
serial0: serial at 1c42000 {
compatible = "ns16550a";
reg = <0x42000 0x100>;
- clock-frequency = <150000000>;
reg-shift = <2>;
interrupts = <25>;
status = "disabled";
@@ -137,7 +136,6 @@
serial1: serial at 1d0c000 {
compatible = "ns16550a";
reg = <0x10c000 0x100>;
- clock-frequency = <150000000>;
reg-shift = <2>;
interrupts = <53>;
status = "disabled";
@@ -145,7 +143,6 @@
serial2: serial at 1d0d000 {
compatible = "ns16550a";
reg = <0x10d000 0x100>;
- clock-frequency = <150000000>;
reg-shift = <2>;
interrupts = <61>;
status = "disabled";
--
1.7.4.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v3 4/5] ARM: davinci: da8xx: remove da8xx_uart_clk_enable
2013-06-19 9:15 ` Manjunathappa, Prakash
@ 2013-06-19 9:15 ` Manjunathappa, Prakash
-1 siblings, 0 replies; 24+ messages in thread
From: Manjunathappa, Prakash @ 2013-06-19 9:15 UTC (permalink / raw)
To: davinci-linux-open-source, linux-serial
Cc: nsekhar, grant.likely, rob.herring, linux, hs,
devicetree-discuss, linux-arm-kernel, Manjunathappa, Prakash
Serial clocks are enabled from of_platform_serial_setup:of_serial.c,
so remove davinci_serial_setup_clk from here.
Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
---
arch/arm/mach-davinci/da8xx-dt.c | 8 --------
1 files changed, 0 insertions(+), 8 deletions(-)
diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c
index e429945..9683cbd 100644
--- a/arch/arm/mach-davinci/da8xx-dt.c
+++ b/arch/arm/mach-davinci/da8xx-dt.c
@@ -20,13 +20,6 @@
#define DA8XX_NUM_UARTS 3
-static void __init da8xx_uart_clk_enable(void)
-{
- int i;
- for (i = 0; i < DA8XX_NUM_UARTS; i++)
- davinci_serial_setup_clk(i, NULL);
-}
-
static struct of_device_id da8xx_irq_match[] __initdata = {
{ .compatible = "ti,cp-intc", .data = cp_intc_of_init, },
{ }
@@ -60,7 +53,6 @@ static void __init da850_init_machine(void)
of_platform_populate(NULL, of_default_bus_match_table,
da850_auxdata_lookup, NULL);
- da8xx_uart_clk_enable();
}
static const char *da850_boards_compat[] __initdata = {
--
1.7.4.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v3 4/5] ARM: davinci: da8xx: remove da8xx_uart_clk_enable
@ 2013-06-19 9:15 ` Manjunathappa, Prakash
0 siblings, 0 replies; 24+ messages in thread
From: Manjunathappa, Prakash @ 2013-06-19 9:15 UTC (permalink / raw)
To: linux-arm-kernel
Serial clocks are enabled from of_platform_serial_setup:of_serial.c,
so remove davinci_serial_setup_clk from here.
Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
---
arch/arm/mach-davinci/da8xx-dt.c | 8 --------
1 files changed, 0 insertions(+), 8 deletions(-)
diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c
index e429945..9683cbd 100644
--- a/arch/arm/mach-davinci/da8xx-dt.c
+++ b/arch/arm/mach-davinci/da8xx-dt.c
@@ -20,13 +20,6 @@
#define DA8XX_NUM_UARTS 3
-static void __init da8xx_uart_clk_enable(void)
-{
- int i;
- for (i = 0; i < DA8XX_NUM_UARTS; i++)
- davinci_serial_setup_clk(i, NULL);
-}
-
static struct of_device_id da8xx_irq_match[] __initdata = {
{ .compatible = "ti,cp-intc", .data = cp_intc_of_init, },
{ }
@@ -60,7 +53,6 @@ static void __init da850_init_machine(void)
of_platform_populate(NULL, of_default_bus_match_table,
da850_auxdata_lookup, NULL);
- da8xx_uart_clk_enable();
}
static const char *da850_boards_compat[] __initdata = {
--
1.7.4.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v3 5/5] ARM: davinci: serial: platform code cleanup
2013-06-19 9:15 ` Manjunathappa, Prakash
@ 2013-06-19 9:15 ` Manjunathappa, Prakash
-1 siblings, 0 replies; 24+ messages in thread
From: Manjunathappa, Prakash @ 2013-06-19 9:15 UTC (permalink / raw)
To: davinci-linux-open-source, linux-serial
Cc: nsekhar, grant.likely, rob.herring, linux, hs,
devicetree-discuss, linux-arm-kernel, Manjunathappa, Prakash
1) "struct davinci_uart_config" is introduced to specify
UART ports brought out or enabled on the board. But
none of the boards use them for that purpose, so clean
it up.
2) Have pointer to platform device as a argument for
davinci_serial_init(), no need of serial_dev in
struct soc_info now.
3) No need of davinci_serial_setup_clk(), not called from
multiple places, hence reduce function call overhead.
Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Suggested-by: Sekhar Nori <nsekhar@ti.com>
---
arch/arm/mach-davinci/board-da830-evm.c | 6 +---
arch/arm/mach-davinci/board-da850-evm.c | 6 +---
arch/arm/mach-davinci/board-dm355-evm.c | 6 +---
arch/arm/mach-davinci/board-dm355-leopard.c | 6 +---
arch/arm/mach-davinci/board-dm365-evm.c | 6 +---
arch/arm/mach-davinci/board-dm644x-evm.c | 6 +---
arch/arm/mach-davinci/board-dm646x-evm.c | 6 +---
arch/arm/mach-davinci/board-mityomapl138.c | 6 +---
arch/arm/mach-davinci/board-neuros-osd2.c | 6 +---
arch/arm/mach-davinci/board-omapl138-hawk.c | 6 +---
arch/arm/mach-davinci/board-sffsdr.c | 7 +---
arch/arm/mach-davinci/da830.c | 1 -
arch/arm/mach-davinci/da850.c | 1 -
arch/arm/mach-davinci/davinci.h | 5 +++
arch/arm/mach-davinci/devices-tnetv107x.c | 2 +-
arch/arm/mach-davinci/dm355.c | 3 +-
arch/arm/mach-davinci/dm365.c | 3 +-
arch/arm/mach-davinci/dm644x.c | 3 +-
arch/arm/mach-davinci/dm646x.c | 3 +-
arch/arm/mach-davinci/include/mach/common.h | 1 -
arch/arm/mach-davinci/include/mach/serial.h | 10 ++----
arch/arm/mach-davinci/include/mach/tnetv107x.h | 1 -
arch/arm/mach-davinci/serial.c | 47 +++++++-----------------
23 files changed, 39 insertions(+), 108 deletions(-)
diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c
index 1332de8..c4bdc0a 100644
--- a/arch/arm/mach-davinci/board-da830-evm.c
+++ b/arch/arm/mach-davinci/board-da830-evm.c
@@ -185,10 +185,6 @@ static __init void da830_evm_usb_init(void)
__func__, ret);
}
-static struct davinci_uart_config da830_evm_uart_config __initdata = {
- .enabled_uarts = 0x7,
-};
-
static const short da830_evm_mcasp1_pins[] = {
DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1,
DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5,
@@ -630,7 +626,7 @@ static __init void da830_evm_init(void)
pr_warning("da830_evm_init: watchdog registration failed: %d\n",
ret);
- davinci_serial_init(&da830_evm_uart_config);
+ davinci_serial_init(da8xx_serial_device);
i2c_register_board_info(1, da830_evm_i2c_devices,
ARRAY_SIZE(da830_evm_i2c_devices));
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index 8a24b6c..9ac76ee 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -746,10 +746,6 @@ static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {
.bus_delay = 0, /* usec */
};
-static struct davinci_uart_config da850_evm_uart_config __initdata = {
- .enabled_uarts = 0x7,
-};
-
/* davinci da850 evm audio machine driver */
static u8 da850_iis_serializer_direction[] = {
INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
@@ -1495,7 +1491,7 @@ static __init void da850_evm_init(void)
__func__, ret);
}
- davinci_serial_init(&da850_evm_uart_config);
+ davinci_serial_init(da8xx_serial_device);
i2c_register_board_info(1, da850_evm_i2c_devices,
ARRAY_SIZE(da850_evm_i2c_devices));
diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c
index c2a0a67..42b23a3 100644
--- a/arch/arm/mach-davinci/board-dm355-evm.c
+++ b/arch/arm/mach-davinci/board-dm355-evm.c
@@ -314,10 +314,6 @@ static struct platform_device *davinci_evm_devices[] __initdata = {
&davinci_nand_device,
};
-static struct davinci_uart_config uart_config __initdata = {
- .enabled_uarts = (1 << 0),
-};
-
static void __init dm355_evm_map_io(void)
{
dm355_init();
@@ -393,7 +389,7 @@ static __init void dm355_evm_init(void)
platform_add_devices(davinci_evm_devices,
ARRAY_SIZE(davinci_evm_devices));
evm_init_i2c();
- davinci_serial_init(&uart_config);
+ davinci_serial_init(dm355_serial_device);
/* NOTE: NAND flash timings set by the UBL are slower than
* needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
diff --git a/arch/arm/mach-davinci/board-dm355-leopard.c b/arch/arm/mach-davinci/board-dm355-leopard.c
index dff4ddc..d9eb1c9 100644
--- a/arch/arm/mach-davinci/board-dm355-leopard.c
+++ b/arch/arm/mach-davinci/board-dm355-leopard.c
@@ -172,10 +172,6 @@ static struct platform_device *davinci_leopard_devices[] __initdata = {
&davinci_nand_device,
};
-static struct davinci_uart_config uart_config __initdata = {
- .enabled_uarts = (1 << 0),
-};
-
static void __init dm355_leopard_map_io(void)
{
dm355_init();
@@ -251,7 +247,7 @@ static __init void dm355_leopard_init(void)
platform_add_devices(davinci_leopard_devices,
ARRAY_SIZE(davinci_leopard_devices));
leopard_init_i2c();
- davinci_serial_init(&uart_config);
+ davinci_serial_init(dm355_serial_device);
/* NOTE: NAND flash timings set by the UBL are slower than
* needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index fd38c8d..5f1ec9d 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -719,10 +719,6 @@ fail:
/* REVISIT export switches: NTSC/PAL (SW5.6), EXTRA1 (SW5.2), etc */
}
-static struct davinci_uart_config uart_config __initdata = {
- .enabled_uarts = (1 << 0),
-};
-
static void __init dm365_evm_map_io(void)
{
dm365_init();
@@ -749,7 +745,7 @@ static struct spi_board_info dm365_evm_spi_info[] __initconst = {
static __init void dm365_evm_init(void)
{
evm_init_i2c();
- davinci_serial_init(&uart_config);
+ davinci_serial_init(dm365_serial_device);
dm365evm_emac_configure();
dm365evm_mmc_configure();
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index a33686a..462812b 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -726,10 +726,6 @@ static struct platform_device *davinci_evm_devices[] __initdata = {
&rtc_dev,
};
-static struct davinci_uart_config uart_config __initdata = {
- .enabled_uarts = (1 << 0),
-};
-
static void __init
davinci_evm_map_io(void)
{
@@ -791,7 +787,7 @@ static __init void davinci_evm_init(void)
davinci_setup_mmc(0, &dm6446evm_mmc_config);
dm644x_init_video(&dm644xevm_capture_cfg, &dm644xevm_display_cfg);
- davinci_serial_init(&uart_config);
+ davinci_serial_init(dm644x_serial_device);
dm644x_init_asp(&dm644x_evm_snd_data);
/* irlml6401 switches over 1A, in under 8 msec */
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index fbb8e5a..734cc02 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -749,10 +749,6 @@ static void __init davinci_map_io(void)
cdce_clk_init();
}
-static struct davinci_uart_config uart_config __initdata = {
- .enabled_uarts = (1 << 0),
-};
-
#define DM646X_EVM_PHY_ID "davinci_mdio-0:01"
/*
* The following EDMA channels/slots are not being used by drivers (for
@@ -792,7 +788,7 @@ static __init void evm_init(void)
struct davinci_soc_info *soc_info = &davinci_soc_info;
evm_init_i2c();
- davinci_serial_init(&uart_config);
+ davinci_serial_init(dm646x_serial_device);
dm646x_init_mcasp0(&dm646x_evm_snd_data[0]);
dm646x_init_mcasp1(&dm646x_evm_snd_data[1]);
diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c
index 9549d53..cd0f587 100644
--- a/arch/arm/mach-davinci/board-mityomapl138.c
+++ b/arch/arm/mach-davinci/board-mityomapl138.c
@@ -434,10 +434,6 @@ static void __init mityomapl138_setup_nand(void)
ARRAY_SIZE(mityomapl138_devices));
}
-static struct davinci_uart_config mityomapl138_uart_config __initdata = {
- .enabled_uarts = 0x7,
-};
-
static const short mityomap_mii_pins[] = {
DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
@@ -517,7 +513,7 @@ static void __init mityomapl138_init(void)
if (ret)
pr_warning("watchdog registration failed: %d\n", ret);
- davinci_serial_init(&mityomapl138_uart_config);
+ davinci_serial_init(da8xx_serial_device);
ret = da8xx_register_i2c(0, &mityomap_i2c_0_pdata);
if (ret)
diff --git a/arch/arm/mach-davinci/board-neuros-osd2.c b/arch/arm/mach-davinci/board-neuros-osd2.c
index 2bc112a..8e156e0 100644
--- a/arch/arm/mach-davinci/board-neuros-osd2.c
+++ b/arch/arm/mach-davinci/board-neuros-osd2.c
@@ -153,10 +153,6 @@ static struct platform_device *davinci_ntosd2_devices[] __initdata = {
&ntosd2_leds_dev,
};
-static struct davinci_uart_config uart_config __initdata = {
- .enabled_uarts = (1 << 0),
-};
-
static void __init davinci_ntosd2_map_io(void)
{
dm644x_init();
@@ -197,7 +193,7 @@ static __init void davinci_ntosd2_init(void)
platform_add_devices(davinci_ntosd2_devices,
ARRAY_SIZE(davinci_ntosd2_devices));
- davinci_serial_init(&uart_config);
+ davinci_serial_init(dm644x_serial_device);
dm644x_init_asp(&dm644x_ntosd2_snd_data);
soc_info->emac_pdata->phy_id = NEUROS_OSD2_PHY_ID;
diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c
index b8c20de..ab98c75 100644
--- a/arch/arm/mach-davinci/board-omapl138-hawk.c
+++ b/arch/arm/mach-davinci/board-omapl138-hawk.c
@@ -286,15 +286,11 @@ usb11_setup_oc_fail:
gpio_free(DA850_USB1_VBUS_PIN);
}
-static struct davinci_uart_config omapl138_hawk_uart_config __initdata = {
- .enabled_uarts = 0x7,
-};
-
static __init void omapl138_hawk_init(void)
{
int ret;
- davinci_serial_init(&omapl138_hawk_uart_config);
+ davinci_serial_init(da8xx_serial_device);
omapl138_hawk_config_emac();
diff --git a/arch/arm/mach-davinci/board-sffsdr.c b/arch/arm/mach-davinci/board-sffsdr.c
index 739be7e..96ca11b 100644
--- a/arch/arm/mach-davinci/board-sffsdr.c
+++ b/arch/arm/mach-davinci/board-sffsdr.c
@@ -44,6 +44,7 @@
#include "davinci.h"
#define SFFSDR_PHY_ID "davinci_mdio-0:01"
+
static struct mtd_partition davinci_sffsdr_nandflash_partition[] = {
/* U-Boot Environment: Block 0
* UBL: Block 1
@@ -125,10 +126,6 @@ static struct platform_device *davinci_sffsdr_devices[] __initdata = {
&davinci_sffsdr_nandflash_device,
};
-static struct davinci_uart_config uart_config __initdata = {
- .enabled_uarts = (1 << 0),
-};
-
static void __init davinci_sffsdr_map_io(void)
{
dm644x_init();
@@ -141,7 +138,7 @@ static __init void davinci_sffsdr_init(void)
platform_add_devices(davinci_sffsdr_devices,
ARRAY_SIZE(davinci_sffsdr_devices));
sffsdr_init_i2c();
- davinci_serial_init(&uart_config);
+ davinci_serial_init(dm644x_serial_device);
soc_info->emac_pdata->phy_id = SFFSDR_PHY_ID;
davinci_setup_usb(0, 0); /* We support only peripheral mode. */
diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
index a3ffd52..111613b 100644
--- a/arch/arm/mach-davinci/da830.c
+++ b/arch/arm/mach-davinci/da830.c
@@ -1199,7 +1199,6 @@ static struct davinci_soc_info davinci_soc_info_da830 = {
.gpio_base = DA8XX_GPIO_BASE,
.gpio_num = 128,
.gpio_irq = IRQ_DA8XX_GPIO0,
- .serial_dev = da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
};
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 7ce691c..b1d56e5 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -1301,7 +1301,6 @@ static struct davinci_soc_info davinci_soc_info_da850 = {
.gpio_base = DA8XX_GPIO_BASE,
.gpio_num = 144,
.gpio_irq = IRQ_DA8XX_GPIO0,
- .serial_dev = da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
.sram_dma = DA8XX_SHARED_RAM_BASE,
.sram_len = SZ_128K,
diff --git a/arch/arm/mach-davinci/davinci.h b/arch/arm/mach-davinci/davinci.h
index 1ab3df4..d6049e8 100644
--- a/arch/arm/mach-davinci/davinci.h
+++ b/arch/arm/mach-davinci/davinci.h
@@ -106,4 +106,9 @@ int __init dm646x_init_edma(struct edma_rsv_info *rsv);
void dm646x_video_init(void);
void dm646x_setup_vpif(struct vpif_display_config *,
struct vpif_capture_config *);
+
+extern struct platform_device dm365_serial_device[];
+extern struct platform_device dm355_serial_device[];
+extern struct platform_device dm644x_serial_device[];
+extern struct platform_device dm646x_serial_device[];
#endif /*__DAVINCI_H */
diff --git a/arch/arm/mach-davinci/devices-tnetv107x.c b/arch/arm/mach-davinci/devices-tnetv107x.c
index d2d8db0..8101910 100644
--- a/arch/arm/mach-davinci/devices-tnetv107x.c
+++ b/arch/arm/mach-davinci/devices-tnetv107x.c
@@ -410,7 +410,7 @@ void __init tnetv107x_devices_init(struct tnetv107x_device_info *info)
platform_device_register(&tsc_device);
if (info->serial_config)
- davinci_serial_init(info->serial_config);
+ davinci_serial_init(tnetv107x_serial_device);
for (i = 0; i < 2; i++)
if (info->mmc_config[i]) {
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 1078cd6..b86e265 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -962,7 +962,7 @@ static struct plat_serial8250_port dm355_serial2_platform_data[] = {
}
};
-static struct platform_device dm355_serial_device[] = {
+struct platform_device dm355_serial_device[] = {
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
@@ -1009,7 +1009,6 @@ static struct davinci_soc_info davinci_soc_info_dm355 = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 104,
.gpio_irq = IRQ_DM355_GPIOBNK0,
- .serial_dev = dm355_serial_device,
.sram_dma = 0x00010000,
.sram_len = SZ_32K,
};
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 6a78856..a34ec22 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -1068,7 +1068,7 @@ static struct plat_serial8250_port dm365_serial1_platform_data[] = {
}
};
-static struct platform_device dm365_serial_device[] = {
+struct platform_device dm365_serial_device[] = {
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
@@ -1109,7 +1109,6 @@ static struct davinci_soc_info davinci_soc_info_dm365 = {
.gpio_num = 104,
.gpio_irq = IRQ_DM365_GPIO0,
.gpio_unbanked = 8, /* really 16 ... skip muxed GPIOs */
- .serial_dev = dm365_serial_device,
.emac_pdata = &dm365_emac_pdata,
.sram_dma = 0x00010000,
.sram_len = SZ_32K,
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 1129ff1..8428f61 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -853,7 +853,7 @@ static struct plat_serial8250_port dm644x_serial2_platform_data[] = {
}
};
-static struct platform_device dm644x_serial_device[] = {
+struct platform_device dm644x_serial_device[] = {
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
@@ -900,7 +900,6 @@ static struct davinci_soc_info davinci_soc_info_dm644x = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 71,
.gpio_irq = IRQ_GPIOBNK0,
- .serial_dev = dm644x_serial_device,
.emac_pdata = &dm644x_emac_pdata,
.sram_dma = 0x00008000,
.sram_len = SZ_16K,
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index d3fd760..3e44a97 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -830,7 +830,7 @@ static struct plat_serial8250_port dm646x_serial2_platform_data[] = {
}
};
-static struct platform_device dm646x_serial_device[] = {
+struct platform_device dm646x_serial_device[] = {
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
@@ -877,7 +877,6 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 43, /* Only 33 usable */
.gpio_irq = IRQ_DM646X_GPIOBNK0,
- .serial_dev = dm646x_serial_device,
.emac_pdata = &dm646x_emac_pdata,
.sram_dma = 0x10010000,
.sram_len = SZ_32K,
diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h
index b124b77..7f5a2e9 100644
--- a/arch/arm/mach-davinci/include/mach/common.h
+++ b/arch/arm/mach-davinci/include/mach/common.h
@@ -71,7 +71,6 @@ struct davinci_soc_info {
unsigned gpio_unbanked;
struct davinci_gpio_controller *gpio_ctlrs;
int gpio_ctlrs_num;
- struct platform_device *serial_dev;
struct emac_platform_data *emac_pdata;
dma_addr_t sram_dma;
unsigned sram_len;
diff --git a/arch/arm/mach-davinci/include/mach/serial.h b/arch/arm/mach-davinci/include/mach/serial.h
index 62ad300..52b8571 100644
--- a/arch/arm/mach-davinci/include/mach/serial.h
+++ b/arch/arm/mach-davinci/include/mach/serial.h
@@ -15,6 +15,8 @@
#include <mach/hardware.h>
+#include <linux/platform_device.h>
+
#define DAVINCI_UART0_BASE (IO_PHYS + 0x20000)
#define DAVINCI_UART1_BASE (IO_PHYS + 0x20400)
#define DAVINCI_UART2_BASE (IO_PHYS + 0x20800)
@@ -37,13 +39,7 @@
#define UART_DM646X_SCR_TX_WATERMARK 0x08
#ifndef __ASSEMBLY__
-struct davinci_uart_config {
- /* Bit field of UARTs present; bit 0 --> UART0 */
- unsigned int enabled_uarts;
-};
-
-extern int davinci_serial_init(struct davinci_uart_config *);
-extern int davinci_serial_setup_clk(unsigned instance, unsigned int *rate);
+extern int davinci_serial_init(struct platform_device *);
#endif
#endif /* __ASM_ARCH_SERIAL_H */
diff --git a/arch/arm/mach-davinci/include/mach/tnetv107x.h b/arch/arm/mach-davinci/include/mach/tnetv107x.h
index 07948a5..c68c7a9 100644
--- a/arch/arm/mach-davinci/include/mach/tnetv107x.h
+++ b/arch/arm/mach-davinci/include/mach/tnetv107x.h
@@ -41,7 +41,6 @@
#include <mach/serial.h>
struct tnetv107x_device_info {
- struct davinci_uart_config *serial_config;
struct davinci_mmc_config *mmc_config[2]; /* 2 controllers */
struct davinci_nand_pdata *nand_config[4]; /* 4 chipsels */
struct matrix_keypad_platform_data *keypad_config;
diff --git a/arch/arm/mach-davinci/serial.c b/arch/arm/mach-davinci/serial.c
index 57e6150..5e93a73 100644
--- a/arch/arm/mach-davinci/serial.c
+++ b/arch/arm/mach-davinci/serial.c
@@ -70,54 +70,35 @@ static void __init davinci_serial_reset(struct plat_serial8250_port *p)
UART_DM646X_SCR_TX_WATERMARK);
}
-/* Enable UART clock and obtain its rate */
-int __init davinci_serial_setup_clk(unsigned instance, unsigned int *rate)
-{
- char name[16];
- struct clk *clk;
- struct davinci_soc_info *soc_info = &davinci_soc_info;
- struct device *dev = &soc_info->serial_dev[instance].dev;
-
- sprintf(name, "uart%d", instance);
- clk = clk_get(dev, name);
- if (IS_ERR(clk)) {
- pr_err("%s:%d: failed to get UART%d clock\n",
- __func__, __LINE__, instance);
- return PTR_ERR(clk);
- }
-
- clk_prepare_enable(clk);
-
- if (rate)
- *rate = clk_get_rate(clk);
-
- return 0;
-}
-
-int __init davinci_serial_init(struct davinci_uart_config *info)
+int __init davinci_serial_init(struct platform_device *serial_dev)
{
int i, ret = 0;
- struct davinci_soc_info *soc_info = &davinci_soc_info;
struct device *dev;
struct plat_serial8250_port *p;
+ struct clk *clk;
/*
* Make sure the serial ports are muxed on at this point.
* You have to mux them off in device drivers later on if not needed.
*/
- for (i = 0; soc_info->serial_dev[i].dev.platform_data != NULL; i++) {
- dev = &soc_info->serial_dev[i].dev;
+ for (i = 0; serial_dev[i].dev.platform_data != NULL; i++) {
+ dev = &serial_dev[i].dev;
p = dev->platform_data;
- if (!(info->enabled_uarts & (1 << i)))
- continue;
- ret = platform_device_register(&soc_info->serial_dev[i]);
+ ret = platform_device_register(&serial_dev[i]);
if (ret)
continue;
- ret = davinci_serial_setup_clk(i, &p->uartclk);
- if (ret)
+ clk = clk_get(dev, NULL);
+ if (IS_ERR(clk)) {
+ pr_err("%s:%d: failed to get UART%d clock\n",
+ __func__, __LINE__, i);
continue;
+ }
+
+ clk_prepare_enable(clk);
+
+ p->uartclk = clk_get_rate(clk);
if (!p->membase && p->mapbase) {
p->membase = ioremap(p->mapbase, SZ_4K);
--
1.7.4.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v3 5/5] ARM: davinci: serial: platform code cleanup
@ 2013-06-19 9:15 ` Manjunathappa, Prakash
0 siblings, 0 replies; 24+ messages in thread
From: Manjunathappa, Prakash @ 2013-06-19 9:15 UTC (permalink / raw)
To: linux-arm-kernel
1) "struct davinci_uart_config" is introduced to specify
UART ports brought out or enabled on the board. But
none of the boards use them for that purpose, so clean
it up.
2) Have pointer to platform device as a argument for
davinci_serial_init(), no need of serial_dev in
struct soc_info now.
3) No need of davinci_serial_setup_clk(), not called from
multiple places, hence reduce function call overhead.
Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Suggested-by: Sekhar Nori <nsekhar@ti.com>
---
arch/arm/mach-davinci/board-da830-evm.c | 6 +---
arch/arm/mach-davinci/board-da850-evm.c | 6 +---
arch/arm/mach-davinci/board-dm355-evm.c | 6 +---
arch/arm/mach-davinci/board-dm355-leopard.c | 6 +---
arch/arm/mach-davinci/board-dm365-evm.c | 6 +---
arch/arm/mach-davinci/board-dm644x-evm.c | 6 +---
arch/arm/mach-davinci/board-dm646x-evm.c | 6 +---
arch/arm/mach-davinci/board-mityomapl138.c | 6 +---
arch/arm/mach-davinci/board-neuros-osd2.c | 6 +---
arch/arm/mach-davinci/board-omapl138-hawk.c | 6 +---
arch/arm/mach-davinci/board-sffsdr.c | 7 +---
arch/arm/mach-davinci/da830.c | 1 -
arch/arm/mach-davinci/da850.c | 1 -
arch/arm/mach-davinci/davinci.h | 5 +++
arch/arm/mach-davinci/devices-tnetv107x.c | 2 +-
arch/arm/mach-davinci/dm355.c | 3 +-
arch/arm/mach-davinci/dm365.c | 3 +-
arch/arm/mach-davinci/dm644x.c | 3 +-
arch/arm/mach-davinci/dm646x.c | 3 +-
arch/arm/mach-davinci/include/mach/common.h | 1 -
arch/arm/mach-davinci/include/mach/serial.h | 10 ++----
arch/arm/mach-davinci/include/mach/tnetv107x.h | 1 -
arch/arm/mach-davinci/serial.c | 47 +++++++-----------------
23 files changed, 39 insertions(+), 108 deletions(-)
diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c
index 1332de8..c4bdc0a 100644
--- a/arch/arm/mach-davinci/board-da830-evm.c
+++ b/arch/arm/mach-davinci/board-da830-evm.c
@@ -185,10 +185,6 @@ static __init void da830_evm_usb_init(void)
__func__, ret);
}
-static struct davinci_uart_config da830_evm_uart_config __initdata = {
- .enabled_uarts = 0x7,
-};
-
static const short da830_evm_mcasp1_pins[] = {
DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1,
DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5,
@@ -630,7 +626,7 @@ static __init void da830_evm_init(void)
pr_warning("da830_evm_init: watchdog registration failed: %d\n",
ret);
- davinci_serial_init(&da830_evm_uart_config);
+ davinci_serial_init(da8xx_serial_device);
i2c_register_board_info(1, da830_evm_i2c_devices,
ARRAY_SIZE(da830_evm_i2c_devices));
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index 8a24b6c..9ac76ee 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -746,10 +746,6 @@ static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {
.bus_delay = 0, /* usec */
};
-static struct davinci_uart_config da850_evm_uart_config __initdata = {
- .enabled_uarts = 0x7,
-};
-
/* davinci da850 evm audio machine driver */
static u8 da850_iis_serializer_direction[] = {
INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
@@ -1495,7 +1491,7 @@ static __init void da850_evm_init(void)
__func__, ret);
}
- davinci_serial_init(&da850_evm_uart_config);
+ davinci_serial_init(da8xx_serial_device);
i2c_register_board_info(1, da850_evm_i2c_devices,
ARRAY_SIZE(da850_evm_i2c_devices));
diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c
index c2a0a67..42b23a3 100644
--- a/arch/arm/mach-davinci/board-dm355-evm.c
+++ b/arch/arm/mach-davinci/board-dm355-evm.c
@@ -314,10 +314,6 @@ static struct platform_device *davinci_evm_devices[] __initdata = {
&davinci_nand_device,
};
-static struct davinci_uart_config uart_config __initdata = {
- .enabled_uarts = (1 << 0),
-};
-
static void __init dm355_evm_map_io(void)
{
dm355_init();
@@ -393,7 +389,7 @@ static __init void dm355_evm_init(void)
platform_add_devices(davinci_evm_devices,
ARRAY_SIZE(davinci_evm_devices));
evm_init_i2c();
- davinci_serial_init(&uart_config);
+ davinci_serial_init(dm355_serial_device);
/* NOTE: NAND flash timings set by the UBL are slower than
* needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
diff --git a/arch/arm/mach-davinci/board-dm355-leopard.c b/arch/arm/mach-davinci/board-dm355-leopard.c
index dff4ddc..d9eb1c9 100644
--- a/arch/arm/mach-davinci/board-dm355-leopard.c
+++ b/arch/arm/mach-davinci/board-dm355-leopard.c
@@ -172,10 +172,6 @@ static struct platform_device *davinci_leopard_devices[] __initdata = {
&davinci_nand_device,
};
-static struct davinci_uart_config uart_config __initdata = {
- .enabled_uarts = (1 << 0),
-};
-
static void __init dm355_leopard_map_io(void)
{
dm355_init();
@@ -251,7 +247,7 @@ static __init void dm355_leopard_init(void)
platform_add_devices(davinci_leopard_devices,
ARRAY_SIZE(davinci_leopard_devices));
leopard_init_i2c();
- davinci_serial_init(&uart_config);
+ davinci_serial_init(dm355_serial_device);
/* NOTE: NAND flash timings set by the UBL are slower than
* needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index fd38c8d..5f1ec9d 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -719,10 +719,6 @@ fail:
/* REVISIT export switches: NTSC/PAL (SW5.6), EXTRA1 (SW5.2), etc */
}
-static struct davinci_uart_config uart_config __initdata = {
- .enabled_uarts = (1 << 0),
-};
-
static void __init dm365_evm_map_io(void)
{
dm365_init();
@@ -749,7 +745,7 @@ static struct spi_board_info dm365_evm_spi_info[] __initconst = {
static __init void dm365_evm_init(void)
{
evm_init_i2c();
- davinci_serial_init(&uart_config);
+ davinci_serial_init(dm365_serial_device);
dm365evm_emac_configure();
dm365evm_mmc_configure();
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index a33686a..462812b 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -726,10 +726,6 @@ static struct platform_device *davinci_evm_devices[] __initdata = {
&rtc_dev,
};
-static struct davinci_uart_config uart_config __initdata = {
- .enabled_uarts = (1 << 0),
-};
-
static void __init
davinci_evm_map_io(void)
{
@@ -791,7 +787,7 @@ static __init void davinci_evm_init(void)
davinci_setup_mmc(0, &dm6446evm_mmc_config);
dm644x_init_video(&dm644xevm_capture_cfg, &dm644xevm_display_cfg);
- davinci_serial_init(&uart_config);
+ davinci_serial_init(dm644x_serial_device);
dm644x_init_asp(&dm644x_evm_snd_data);
/* irlml6401 switches over 1A, in under 8 msec */
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index fbb8e5a..734cc02 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -749,10 +749,6 @@ static void __init davinci_map_io(void)
cdce_clk_init();
}
-static struct davinci_uart_config uart_config __initdata = {
- .enabled_uarts = (1 << 0),
-};
-
#define DM646X_EVM_PHY_ID "davinci_mdio-0:01"
/*
* The following EDMA channels/slots are not being used by drivers (for
@@ -792,7 +788,7 @@ static __init void evm_init(void)
struct davinci_soc_info *soc_info = &davinci_soc_info;
evm_init_i2c();
- davinci_serial_init(&uart_config);
+ davinci_serial_init(dm646x_serial_device);
dm646x_init_mcasp0(&dm646x_evm_snd_data[0]);
dm646x_init_mcasp1(&dm646x_evm_snd_data[1]);
diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c
index 9549d53..cd0f587 100644
--- a/arch/arm/mach-davinci/board-mityomapl138.c
+++ b/arch/arm/mach-davinci/board-mityomapl138.c
@@ -434,10 +434,6 @@ static void __init mityomapl138_setup_nand(void)
ARRAY_SIZE(mityomapl138_devices));
}
-static struct davinci_uart_config mityomapl138_uart_config __initdata = {
- .enabled_uarts = 0x7,
-};
-
static const short mityomap_mii_pins[] = {
DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
@@ -517,7 +513,7 @@ static void __init mityomapl138_init(void)
if (ret)
pr_warning("watchdog registration failed: %d\n", ret);
- davinci_serial_init(&mityomapl138_uart_config);
+ davinci_serial_init(da8xx_serial_device);
ret = da8xx_register_i2c(0, &mityomap_i2c_0_pdata);
if (ret)
diff --git a/arch/arm/mach-davinci/board-neuros-osd2.c b/arch/arm/mach-davinci/board-neuros-osd2.c
index 2bc112a..8e156e0 100644
--- a/arch/arm/mach-davinci/board-neuros-osd2.c
+++ b/arch/arm/mach-davinci/board-neuros-osd2.c
@@ -153,10 +153,6 @@ static struct platform_device *davinci_ntosd2_devices[] __initdata = {
&ntosd2_leds_dev,
};
-static struct davinci_uart_config uart_config __initdata = {
- .enabled_uarts = (1 << 0),
-};
-
static void __init davinci_ntosd2_map_io(void)
{
dm644x_init();
@@ -197,7 +193,7 @@ static __init void davinci_ntosd2_init(void)
platform_add_devices(davinci_ntosd2_devices,
ARRAY_SIZE(davinci_ntosd2_devices));
- davinci_serial_init(&uart_config);
+ davinci_serial_init(dm644x_serial_device);
dm644x_init_asp(&dm644x_ntosd2_snd_data);
soc_info->emac_pdata->phy_id = NEUROS_OSD2_PHY_ID;
diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c
index b8c20de..ab98c75 100644
--- a/arch/arm/mach-davinci/board-omapl138-hawk.c
+++ b/arch/arm/mach-davinci/board-omapl138-hawk.c
@@ -286,15 +286,11 @@ usb11_setup_oc_fail:
gpio_free(DA850_USB1_VBUS_PIN);
}
-static struct davinci_uart_config omapl138_hawk_uart_config __initdata = {
- .enabled_uarts = 0x7,
-};
-
static __init void omapl138_hawk_init(void)
{
int ret;
- davinci_serial_init(&omapl138_hawk_uart_config);
+ davinci_serial_init(da8xx_serial_device);
omapl138_hawk_config_emac();
diff --git a/arch/arm/mach-davinci/board-sffsdr.c b/arch/arm/mach-davinci/board-sffsdr.c
index 739be7e..96ca11b 100644
--- a/arch/arm/mach-davinci/board-sffsdr.c
+++ b/arch/arm/mach-davinci/board-sffsdr.c
@@ -44,6 +44,7 @@
#include "davinci.h"
#define SFFSDR_PHY_ID "davinci_mdio-0:01"
+
static struct mtd_partition davinci_sffsdr_nandflash_partition[] = {
/* U-Boot Environment: Block 0
* UBL: Block 1
@@ -125,10 +126,6 @@ static struct platform_device *davinci_sffsdr_devices[] __initdata = {
&davinci_sffsdr_nandflash_device,
};
-static struct davinci_uart_config uart_config __initdata = {
- .enabled_uarts = (1 << 0),
-};
-
static void __init davinci_sffsdr_map_io(void)
{
dm644x_init();
@@ -141,7 +138,7 @@ static __init void davinci_sffsdr_init(void)
platform_add_devices(davinci_sffsdr_devices,
ARRAY_SIZE(davinci_sffsdr_devices));
sffsdr_init_i2c();
- davinci_serial_init(&uart_config);
+ davinci_serial_init(dm644x_serial_device);
soc_info->emac_pdata->phy_id = SFFSDR_PHY_ID;
davinci_setup_usb(0, 0); /* We support only peripheral mode. */
diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
index a3ffd52..111613b 100644
--- a/arch/arm/mach-davinci/da830.c
+++ b/arch/arm/mach-davinci/da830.c
@@ -1199,7 +1199,6 @@ static struct davinci_soc_info davinci_soc_info_da830 = {
.gpio_base = DA8XX_GPIO_BASE,
.gpio_num = 128,
.gpio_irq = IRQ_DA8XX_GPIO0,
- .serial_dev = da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
};
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 7ce691c..b1d56e5 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -1301,7 +1301,6 @@ static struct davinci_soc_info davinci_soc_info_da850 = {
.gpio_base = DA8XX_GPIO_BASE,
.gpio_num = 144,
.gpio_irq = IRQ_DA8XX_GPIO0,
- .serial_dev = da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
.sram_dma = DA8XX_SHARED_RAM_BASE,
.sram_len = SZ_128K,
diff --git a/arch/arm/mach-davinci/davinci.h b/arch/arm/mach-davinci/davinci.h
index 1ab3df4..d6049e8 100644
--- a/arch/arm/mach-davinci/davinci.h
+++ b/arch/arm/mach-davinci/davinci.h
@@ -106,4 +106,9 @@ int __init dm646x_init_edma(struct edma_rsv_info *rsv);
void dm646x_video_init(void);
void dm646x_setup_vpif(struct vpif_display_config *,
struct vpif_capture_config *);
+
+extern struct platform_device dm365_serial_device[];
+extern struct platform_device dm355_serial_device[];
+extern struct platform_device dm644x_serial_device[];
+extern struct platform_device dm646x_serial_device[];
#endif /*__DAVINCI_H */
diff --git a/arch/arm/mach-davinci/devices-tnetv107x.c b/arch/arm/mach-davinci/devices-tnetv107x.c
index d2d8db0..8101910 100644
--- a/arch/arm/mach-davinci/devices-tnetv107x.c
+++ b/arch/arm/mach-davinci/devices-tnetv107x.c
@@ -410,7 +410,7 @@ void __init tnetv107x_devices_init(struct tnetv107x_device_info *info)
platform_device_register(&tsc_device);
if (info->serial_config)
- davinci_serial_init(info->serial_config);
+ davinci_serial_init(tnetv107x_serial_device);
for (i = 0; i < 2; i++)
if (info->mmc_config[i]) {
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 1078cd6..b86e265 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -962,7 +962,7 @@ static struct plat_serial8250_port dm355_serial2_platform_data[] = {
}
};
-static struct platform_device dm355_serial_device[] = {
+struct platform_device dm355_serial_device[] = {
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
@@ -1009,7 +1009,6 @@ static struct davinci_soc_info davinci_soc_info_dm355 = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 104,
.gpio_irq = IRQ_DM355_GPIOBNK0,
- .serial_dev = dm355_serial_device,
.sram_dma = 0x00010000,
.sram_len = SZ_32K,
};
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 6a78856..a34ec22 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -1068,7 +1068,7 @@ static struct plat_serial8250_port dm365_serial1_platform_data[] = {
}
};
-static struct platform_device dm365_serial_device[] = {
+struct platform_device dm365_serial_device[] = {
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
@@ -1109,7 +1109,6 @@ static struct davinci_soc_info davinci_soc_info_dm365 = {
.gpio_num = 104,
.gpio_irq = IRQ_DM365_GPIO0,
.gpio_unbanked = 8, /* really 16 ... skip muxed GPIOs */
- .serial_dev = dm365_serial_device,
.emac_pdata = &dm365_emac_pdata,
.sram_dma = 0x00010000,
.sram_len = SZ_32K,
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 1129ff1..8428f61 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -853,7 +853,7 @@ static struct plat_serial8250_port dm644x_serial2_platform_data[] = {
}
};
-static struct platform_device dm644x_serial_device[] = {
+struct platform_device dm644x_serial_device[] = {
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
@@ -900,7 +900,6 @@ static struct davinci_soc_info davinci_soc_info_dm644x = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 71,
.gpio_irq = IRQ_GPIOBNK0,
- .serial_dev = dm644x_serial_device,
.emac_pdata = &dm644x_emac_pdata,
.sram_dma = 0x00008000,
.sram_len = SZ_16K,
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index d3fd760..3e44a97 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -830,7 +830,7 @@ static struct plat_serial8250_port dm646x_serial2_platform_data[] = {
}
};
-static struct platform_device dm646x_serial_device[] = {
+struct platform_device dm646x_serial_device[] = {
{
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
@@ -877,7 +877,6 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 43, /* Only 33 usable */
.gpio_irq = IRQ_DM646X_GPIOBNK0,
- .serial_dev = dm646x_serial_device,
.emac_pdata = &dm646x_emac_pdata,
.sram_dma = 0x10010000,
.sram_len = SZ_32K,
diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h
index b124b77..7f5a2e9 100644
--- a/arch/arm/mach-davinci/include/mach/common.h
+++ b/arch/arm/mach-davinci/include/mach/common.h
@@ -71,7 +71,6 @@ struct davinci_soc_info {
unsigned gpio_unbanked;
struct davinci_gpio_controller *gpio_ctlrs;
int gpio_ctlrs_num;
- struct platform_device *serial_dev;
struct emac_platform_data *emac_pdata;
dma_addr_t sram_dma;
unsigned sram_len;
diff --git a/arch/arm/mach-davinci/include/mach/serial.h b/arch/arm/mach-davinci/include/mach/serial.h
index 62ad300..52b8571 100644
--- a/arch/arm/mach-davinci/include/mach/serial.h
+++ b/arch/arm/mach-davinci/include/mach/serial.h
@@ -15,6 +15,8 @@
#include <mach/hardware.h>
+#include <linux/platform_device.h>
+
#define DAVINCI_UART0_BASE (IO_PHYS + 0x20000)
#define DAVINCI_UART1_BASE (IO_PHYS + 0x20400)
#define DAVINCI_UART2_BASE (IO_PHYS + 0x20800)
@@ -37,13 +39,7 @@
#define UART_DM646X_SCR_TX_WATERMARK 0x08
#ifndef __ASSEMBLY__
-struct davinci_uart_config {
- /* Bit field of UARTs present; bit 0 --> UART0 */
- unsigned int enabled_uarts;
-};
-
-extern int davinci_serial_init(struct davinci_uart_config *);
-extern int davinci_serial_setup_clk(unsigned instance, unsigned int *rate);
+extern int davinci_serial_init(struct platform_device *);
#endif
#endif /* __ASM_ARCH_SERIAL_H */
diff --git a/arch/arm/mach-davinci/include/mach/tnetv107x.h b/arch/arm/mach-davinci/include/mach/tnetv107x.h
index 07948a5..c68c7a9 100644
--- a/arch/arm/mach-davinci/include/mach/tnetv107x.h
+++ b/arch/arm/mach-davinci/include/mach/tnetv107x.h
@@ -41,7 +41,6 @@
#include <mach/serial.h>
struct tnetv107x_device_info {
- struct davinci_uart_config *serial_config;
struct davinci_mmc_config *mmc_config[2]; /* 2 controllers */
struct davinci_nand_pdata *nand_config[4]; /* 4 chipsels */
struct matrix_keypad_platform_data *keypad_config;
diff --git a/arch/arm/mach-davinci/serial.c b/arch/arm/mach-davinci/serial.c
index 57e6150..5e93a73 100644
--- a/arch/arm/mach-davinci/serial.c
+++ b/arch/arm/mach-davinci/serial.c
@@ -70,54 +70,35 @@ static void __init davinci_serial_reset(struct plat_serial8250_port *p)
UART_DM646X_SCR_TX_WATERMARK);
}
-/* Enable UART clock and obtain its rate */
-int __init davinci_serial_setup_clk(unsigned instance, unsigned int *rate)
-{
- char name[16];
- struct clk *clk;
- struct davinci_soc_info *soc_info = &davinci_soc_info;
- struct device *dev = &soc_info->serial_dev[instance].dev;
-
- sprintf(name, "uart%d", instance);
- clk = clk_get(dev, name);
- if (IS_ERR(clk)) {
- pr_err("%s:%d: failed to get UART%d clock\n",
- __func__, __LINE__, instance);
- return PTR_ERR(clk);
- }
-
- clk_prepare_enable(clk);
-
- if (rate)
- *rate = clk_get_rate(clk);
-
- return 0;
-}
-
-int __init davinci_serial_init(struct davinci_uart_config *info)
+int __init davinci_serial_init(struct platform_device *serial_dev)
{
int i, ret = 0;
- struct davinci_soc_info *soc_info = &davinci_soc_info;
struct device *dev;
struct plat_serial8250_port *p;
+ struct clk *clk;
/*
* Make sure the serial ports are muxed on at this point.
* You have to mux them off in device drivers later on if not needed.
*/
- for (i = 0; soc_info->serial_dev[i].dev.platform_data != NULL; i++) {
- dev = &soc_info->serial_dev[i].dev;
+ for (i = 0; serial_dev[i].dev.platform_data != NULL; i++) {
+ dev = &serial_dev[i].dev;
p = dev->platform_data;
- if (!(info->enabled_uarts & (1 << i)))
- continue;
- ret = platform_device_register(&soc_info->serial_dev[i]);
+ ret = platform_device_register(&serial_dev[i]);
if (ret)
continue;
- ret = davinci_serial_setup_clk(i, &p->uartclk);
- if (ret)
+ clk = clk_get(dev, NULL);
+ if (IS_ERR(clk)) {
+ pr_err("%s:%d: failed to get UART%d clock\n",
+ __func__, __LINE__, i);
continue;
+ }
+
+ clk_prepare_enable(clk);
+
+ p->uartclk = clk_get_rate(clk);
if (!p->membase && p->mapbase) {
p->membase = ioremap(p->mapbase, SZ_4K);
--
1.7.4.1
^ permalink raw reply related [flat|nested] 24+ messages in thread
* Re: [PATCH v3 1/5] ARM: davinci: uart: move to devid based clk_get
2013-06-19 9:15 ` Manjunathappa, Prakash
@ 2013-07-19 13:06 ` Sekhar Nori
-1 siblings, 0 replies; 24+ messages in thread
From: Sekhar Nori @ 2013-07-19 13:06 UTC (permalink / raw)
To: Manjunathappa, Prakash
Cc: davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/,
linux-lFZ/pmaqli7XmaaqVzeoHQ,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ,
rob.herring-bsGFqQB8/DxBDgjK7y7TUQ,
grant.likely-s3s/WqlpOiPyB63q8FvJNQ,
linux-serial-u79uwXL29TY76Z2rM5mHXA, hs-ynQEQJNshbs,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
On Wednesday 19 June 2013 02:45 PM, Manjunathappa, Prakash wrote:
> For modules having single clock, clk_get should be done with dev_id.
> But current davinci implementation handles multiple instances
> of the UART devices with single platform_device_register. Hence clk_get
> is based on con_id rather than dev_id, this is not correct. Do
> platform_device_register for each instance and clk_get on dev_id.
>
> Signed-off-by: Manjunathappa, Prakash <prakash.pm-l0cyMroinI0@public.gmane.org>
[...]
> diff --git a/arch/arm/mach-davinci/serial.c b/arch/arm/mach-davinci/serial.c
> index f262581..57e6150 100644
> --- a/arch/arm/mach-davinci/serial.c
> +++ b/arch/arm/mach-davinci/serial.c
> @@ -76,7 +76,7 @@ int __init davinci_serial_setup_clk(unsigned instance, unsigned int *rate)
> char name[16];
> struct clk *clk;
> struct davinci_soc_info *soc_info = &davinci_soc_info;
> - struct device *dev = &soc_info->serial_dev->dev;
> + struct device *dev = &soc_info->serial_dev[instance].dev;
>
> sprintf(name, "uart%d", instance);
> clk = clk_get(dev, name);
Since the subject of your patch is to use avoid using the con_id for
clk_get() match, you should stop passing 'name' here. So instead do
clk = clk_get(dev, NULL);
I did this change locally (along with removal of now useless sprintf
call and name variable) and committed for inclusion in v3.12. Final
patch attached for reference.
Thanks,
Sekhar
---8<---
ARM: davinci: uart: move to devid based clk_get
For modules having single clock, clk_get should be done with dev_id.
But current davinci implementation handles multiple instances
of the UART devices with single platform_device_register. Hence clk_get
is based on con_id rather than dev_id, this is not correct. Do
platform_device_register for each instance and clk_get on dev_id.
Signed-off-by: Manjunathappa, Prakash <prakash.pm-l0cyMroinI0@public.gmane.org>
[nsekhar-l0cyMroinI0@public.gmane.org: actually stop using con_id in clk_get()]
Signed-off-by: Sekhar Nori <nsekhar-l0cyMroinI0@public.gmane.org>
diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
index abbaf02..a3ffd52 100644
--- a/arch/arm/mach-davinci/da830.c
+++ b/arch/arm/mach-davinci/da830.c
@@ -395,9 +395,9 @@ static struct clk_lookup da830_clks[] = {
CLK(NULL, "tptc0", &tptc0_clk),
CLK(NULL, "tptc1", &tptc1_clk),
CLK("da830-mmc.0", NULL, &mmcsd_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("spi_davinci.0", NULL, &spi0_clk),
CLK("spi_davinci.1", NULL, &spi1_clk),
CLK(NULL, "ecap0", &ecap0_clk),
@@ -1199,7 +1199,7 @@ static struct davinci_soc_info davinci_soc_info_da830 = {
.gpio_base = DA8XX_GPIO_BASE,
.gpio_num = 128,
.gpio_irq = IRQ_DA8XX_GPIO0,
- .serial_dev = &da8xx_serial_device,
+ .serial_dev = da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
};
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index a0d4f60..d4274ab 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -451,9 +451,9 @@ static struct clk_lookup da850_clks[] = {
CLK(NULL, "tpcc1", &tpcc1_clk),
CLK(NULL, "tptc2", &tptc2_clk),
CLK("pruss_uio", "pruss", &pruss_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK(NULL, "aintc", &aintc_clk),
CLK(NULL, "gpio", &gpio_clk),
CLK("i2c_davinci.2", NULL, &i2c1_clk),
@@ -1301,7 +1301,7 @@ static struct davinci_soc_info davinci_soc_info_da850 = {
.gpio_base = DA8XX_GPIO_BASE,
.gpio_num = 144,
.gpio_irq = IRQ_DA8XX_GPIO0,
- .serial_dev = &da8xx_serial_device,
+ .serial_dev = da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
.sram_dma = DA8XX_SHARED_RAM_BASE,
.sram_len = SZ_128K,
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index 71a46a3..280f67d 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -68,7 +68,7 @@
void __iomem *da8xx_syscfg0_base;
void __iomem *da8xx_syscfg1_base;
-static struct plat_serial8250_port da8xx_serial_pdata[] = {
+static struct plat_serial8250_port da8xx_serial0_pdata[] = {
{
.mapbase = DA8XX_UART0_BASE,
.irq = IRQ_DA8XX_UARTINT0,
@@ -78,6 +78,11 @@ static struct plat_serial8250_port da8xx_serial_pdata[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port da8xx_serial1_pdata[] = {
+ {
.mapbase = DA8XX_UART1_BASE,
.irq = IRQ_DA8XX_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -86,6 +91,11 @@ static struct plat_serial8250_port da8xx_serial_pdata[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port da8xx_serial2_pdata[] = {
+ {
.mapbase = DA8XX_UART2_BASE,
.irq = IRQ_DA8XX_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -95,15 +105,33 @@ static struct plat_serial8250_port da8xx_serial_pdata[] = {
},
{
.flags = 0,
- },
+ }
};
-struct platform_device da8xx_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = da8xx_serial_pdata,
+struct platform_device da8xx_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = da8xx_serial0_pdata,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = da8xx_serial1_pdata,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = da8xx_serial2_pdata,
+ }
+ },
+ {
+ }
};
static s8 da8xx_queue_tc_mapping[][2] = {
diff --git a/arch/arm/mach-davinci/devices-tnetv107x.c b/arch/arm/mach-davinci/devices-tnetv107x.c
index 128cb9a..fc4a0fe 100644
--- a/arch/arm/mach-davinci/devices-tnetv107x.c
+++ b/arch/arm/mach-davinci/devices-tnetv107x.c
@@ -126,7 +126,7 @@ static struct platform_device edma_device = {
.dev.platform_data = tnetv107x_edma_info,
};
-static struct plat_serial8250_port serial_data[] = {
+static struct plat_serial8250_port serial0_platform_data[] = {
{
.mapbase = TNETV107X_UART0_BASE,
.irq = IRQ_TNETV107X_UART0,
@@ -137,6 +137,11 @@ static struct plat_serial8250_port serial_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port serial1_platform_data[] = {
+ {
.mapbase = TNETV107X_UART1_BASE,
.irq = IRQ_TNETV107X_UART1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -146,6 +151,11 @@ static struct plat_serial8250_port serial_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port serial2_platform_data[] = {
+ {
.mapbase = TNETV107X_UART2_BASE,
.irq = IRQ_TNETV107X_UART2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -156,13 +166,28 @@ static struct plat_serial8250_port serial_data[] = {
},
{
.flags = 0,
- },
+ }
};
-struct platform_device tnetv107x_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev.platform_data = serial_data,
+
+struct platform_device tnetv107x_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev.platform_data = serial0_platform_data,
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev.platform_data = serial1_platform_data,
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev.platform_data = serial2_platform_data,
+ },
+ {
+ }
};
static struct resource mmc0_resources[] = {
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 42ef53f..29fdbae 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -357,9 +357,9 @@ static struct clk_lookup dm355_clks[] = {
CLK(NULL, "clkout3", &clkout3_clk),
CLK(NULL, "arm", &arm_clk),
CLK(NULL, "mjcp", &mjcp_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK("davinci-mcbsp.0", NULL, &asp0_clk),
CLK("davinci-mcbsp.1", NULL, &asp1_clk),
@@ -922,7 +922,7 @@ static struct davinci_timer_info dm355_timer_info = {
.clocksource_id = T0_TOP,
};
-static struct plat_serial8250_port dm355_serial_platform_data[] = {
+static struct plat_serial8250_port dm355_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -932,6 +932,11 @@ static struct plat_serial8250_port dm355_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm355_serial1_platform_data[] = {
+ {
.mapbase = DAVINCI_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -940,6 +945,11 @@ static struct plat_serial8250_port dm355_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm355_serial2_platform_data[] = {
+ {
.mapbase = DM355_UART2_BASE,
.irq = IRQ_DM355_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -948,16 +958,34 @@ static struct plat_serial8250_port dm355_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm355_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm355_serial_platform_data,
+static struct platform_device dm355_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm355_serial0_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm355_serial1_platform_data,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = dm355_serial2_platform_data,
+ }
+ },
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm355 = {
@@ -981,7 +1009,7 @@ static struct davinci_soc_info davinci_soc_info_dm355 = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 104,
.gpio_irq = IRQ_DM355_GPIOBNK0,
- .serial_dev = &dm355_serial_device,
+ .serial_dev = dm355_serial_device,
.sram_dma = 0x00010000,
.sram_len = SZ_32K,
};
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index fa7af5e..b601189 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -455,8 +455,8 @@ static struct clk_lookup dm365_clks[] = {
CLK("vpss", "master", &vpss_master_clk),
CLK("vpss", "slave", &vpss_slave_clk),
CLK(NULL, "arm", &arm_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK("da830-mmc.0", NULL, &mmcsd0_clk),
CLK("da830-mmc.1", NULL, &mmcsd1_clk),
@@ -1041,7 +1041,7 @@ static struct davinci_timer_info dm365_timer_info = {
#define DM365_UART1_BASE (IO_PHYS + 0x106000)
-static struct plat_serial8250_port dm365_serial_platform_data[] = {
+static struct plat_serial8250_port dm365_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -1051,6 +1051,11 @@ static struct plat_serial8250_port dm365_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm365_serial1_platform_data[] = {
+ {
.mapbase = DM365_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -1059,16 +1064,27 @@ static struct plat_serial8250_port dm365_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm365_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm365_serial_platform_data,
+static struct platform_device dm365_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm365_serial0_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm365_serial1_platform_data,
+ }
},
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm365 = {
@@ -1093,7 +1109,7 @@ static struct davinci_soc_info davinci_soc_info_dm365 = {
.gpio_num = 104,
.gpio_irq = IRQ_DM365_GPIO0,
.gpio_unbanked = 8, /* really 16 ... skip muxed GPIOs */
- .serial_dev = &dm365_serial_device,
+ .serial_dev = dm365_serial_device,
.emac_pdata = &dm365_emac_pdata,
.sram_dma = 0x00010000,
.sram_len = SZ_32K,
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index a49d182..490eb8c 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -303,9 +303,9 @@ static struct clk_lookup dm644x_clks[] = {
CLK("vpss", "master", &vpss_master_clk),
CLK("vpss", "slave", &vpss_slave_clk),
CLK(NULL, "arm", &arm_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("davinci_emac.1", NULL, &emac_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK("palm_bk3710", NULL, &ide_clk),
@@ -813,7 +813,7 @@ static struct davinci_timer_info dm644x_timer_info = {
.clocksource_id = T0_TOP,
};
-static struct plat_serial8250_port dm644x_serial_platform_data[] = {
+static struct plat_serial8250_port dm644x_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -823,6 +823,11 @@ static struct plat_serial8250_port dm644x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm644x_serial1_platform_data[] = {
+ {
.mapbase = DAVINCI_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -831,6 +836,11 @@ static struct plat_serial8250_port dm644x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm644x_serial2_platform_data[] = {
+ {
.mapbase = DAVINCI_UART2_BASE,
.irq = IRQ_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -839,16 +849,34 @@ static struct plat_serial8250_port dm644x_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm644x_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm644x_serial_platform_data,
+static struct platform_device dm644x_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm644x_serial0_platform_data,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm644x_serial1_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = dm644x_serial2_platform_data,
+ }
+ },
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm644x = {
@@ -872,7 +900,7 @@ static struct davinci_soc_info davinci_soc_info_dm644x = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 71,
.gpio_irq = IRQ_GPIOBNK0,
- .serial_dev = &dm644x_serial_device,
+ .serial_dev = dm644x_serial_device,
.emac_pdata = &dm644x_emac_pdata,
.sram_dma = 0x00008000,
.sram_len = SZ_16K,
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index d1259e8..23609b1 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -342,9 +342,9 @@ static struct clk_lookup dm646x_clks[] = {
CLK(NULL, "edma_tc1", &edma_tc1_clk),
CLK(NULL, "edma_tc2", &edma_tc2_clk),
CLK(NULL, "edma_tc3", &edma_tc3_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK(NULL, "gpio", &gpio_clk),
CLK("davinci-mcasp.0", NULL, &mcasp0_clk),
@@ -790,7 +790,7 @@ static struct davinci_timer_info dm646x_timer_info = {
.clocksource_id = T0_TOP,
};
-static struct plat_serial8250_port dm646x_serial_platform_data[] = {
+static struct plat_serial8250_port dm646x_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -800,6 +800,11 @@ static struct plat_serial8250_port dm646x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm646x_serial1_platform_data[] = {
+ {
.mapbase = DAVINCI_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -808,6 +813,11 @@ static struct plat_serial8250_port dm646x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm646x_serial2_platform_data[] = {
+ {
.mapbase = DAVINCI_UART2_BASE,
.irq = IRQ_DM646X_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -816,16 +826,34 @@ static struct plat_serial8250_port dm646x_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm646x_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm646x_serial_platform_data,
+static struct platform_device dm646x_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm646x_serial0_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm646x_serial1_platform_data,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = dm646x_serial2_platform_data,
+ }
+ },
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm646x = {
@@ -849,7 +877,7 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 43, /* Only 33 usable */
.gpio_irq = IRQ_DM646X_GPIOBNK0,
- .serial_dev = &dm646x_serial_device,
+ .serial_dev = dm646x_serial_device,
.emac_pdata = &dm646x_emac_pdata,
.sram_dma = 0x10010000,
.sram_len = SZ_32K,
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index 7b41a5e..aae5307 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -111,7 +111,7 @@ void da8xx_restart(enum reboot_mode mode, const char *cmd);
void da8xx_rproc_reserve_cma(void);
int da8xx_register_rproc(void);
-extern struct platform_device da8xx_serial_device;
+extern struct platform_device da8xx_serial_device[];
extern struct emac_platform_data da8xx_emac_pdata;
extern struct da8xx_lcdc_platform_data sharp_lcd035q3dg01_pdata;
extern struct da8xx_lcdc_platform_data sharp_lk043t1dg01_pdata;
diff --git a/arch/arm/mach-davinci/include/mach/tnetv107x.h b/arch/arm/mach-davinci/include/mach/tnetv107x.h
index 16314c6..beb7c0e 100644
--- a/arch/arm/mach-davinci/include/mach/tnetv107x.h
+++ b/arch/arm/mach-davinci/include/mach/tnetv107x.h
@@ -50,7 +50,7 @@ struct tnetv107x_device_info {
};
extern struct platform_device tnetv107x_wdt_device;
-extern struct platform_device tnetv107x_serial_device;
+extern struct platform_device tnetv107x_serial_device[];
extern void tnetv107x_init(void);
extern void tnetv107x_devices_init(struct tnetv107x_device_info *);
diff --git a/arch/arm/mach-davinci/serial.c b/arch/arm/mach-davinci/serial.c
index f262581..2bc74c2 100644
--- a/arch/arm/mach-davinci/serial.c
+++ b/arch/arm/mach-davinci/serial.c
@@ -73,13 +73,11 @@ static void __init davinci_serial_reset(struct plat_serial8250_port *p)
/* Enable UART clock and obtain its rate */
int __init davinci_serial_setup_clk(unsigned instance, unsigned int *rate)
{
- char name[16];
struct clk *clk;
struct davinci_soc_info *soc_info = &davinci_soc_info;
- struct device *dev = &soc_info->serial_dev->dev;
+ struct device *dev = &soc_info->serial_dev[instance].dev;
- sprintf(name, "uart%d", instance);
- clk = clk_get(dev, name);
+ clk = clk_get(dev, NULL);
if (IS_ERR(clk)) {
pr_err("%s:%d: failed to get UART%d clock\n",
__func__, __LINE__, instance);
@@ -96,19 +94,25 @@ int __init davinci_serial_setup_clk(unsigned instance, unsigned int *rate)
int __init davinci_serial_init(struct davinci_uart_config *info)
{
- int i, ret;
+ int i, ret = 0;
struct davinci_soc_info *soc_info = &davinci_soc_info;
- struct device *dev = &soc_info->serial_dev->dev;
- struct plat_serial8250_port *p = dev->platform_data;
+ struct device *dev;
+ struct plat_serial8250_port *p;
/*
* Make sure the serial ports are muxed on at this point.
* You have to mux them off in device drivers later on if not needed.
*/
- for (i = 0; p->flags; i++, p++) {
+ for (i = 0; soc_info->serial_dev[i].dev.platform_data != NULL; i++) {
+ dev = &soc_info->serial_dev[i].dev;
+ p = dev->platform_data;
if (!(info->enabled_uarts & (1 << i)))
continue;
+ ret = platform_device_register(&soc_info->serial_dev[i]);
+ if (ret)
+ continue;
+
ret = davinci_serial_setup_clk(i, &p->uartclk);
if (ret)
continue;
@@ -125,6 +129,5 @@ int __init davinci_serial_init(struct davinci_uart_config *info)
if (p->membase && p->type != PORT_AR7)
davinci_serial_reset(p);
}
-
- return platform_device_register(soc_info->serial_dev);
+ return ret;
}
diff --git a/arch/arm/mach-davinci/tnetv107x.c b/arch/arm/mach-davinci/tnetv107x.c
index 4545667..f4d7fbb 100644
--- a/arch/arm/mach-davinci/tnetv107x.c
+++ b/arch/arm/mach-davinci/tnetv107x.c
@@ -264,7 +264,7 @@ static struct clk_lookup clks[] = {
CLK(NULL, "clk_chipcfg", &clk_chipcfg),
CLK("tnetv107x-ts.0", NULL, &clk_tsc),
CLK(NULL, "clk_rom", &clk_rom),
- CLK(NULL, "uart2", &clk_uart2),
+ CLK("serial8250.2", NULL, &clk_uart2),
CLK(NULL, "clk_pktsec", &clk_pktsec),
CLK("tnetv107x-rng.0", NULL, &clk_rng),
CLK("tnetv107x-pka.0", NULL, &clk_pka),
@@ -274,8 +274,8 @@ static struct clk_lookup clks[] = {
CLK(NULL, "clk_gpio", &clk_gpio),
CLK(NULL, "clk_mdio", &clk_mdio),
CLK("dm6441-mmc.0", NULL, &clk_sdio0),
- CLK(NULL, "uart0", &clk_uart0),
- CLK(NULL, "uart1", &clk_uart1),
+ CLK("serial8250.0", NULL, &clk_uart0),
+ CLK("serial8250.1", NULL, &clk_uart1),
CLK(NULL, "timer0", &clk_timer0),
CLK(NULL, "timer1", &clk_timer1),
CLK("tnetv107x_wdt.0", NULL, &clk_wdt_arm),
@@ -757,7 +757,7 @@ static struct davinci_soc_info tnetv107x_soc_info = {
.gpio_type = GPIO_TYPE_TNETV107X,
.gpio_num = TNETV107X_N_GPIO,
.timer_info = &timer_info,
- .serial_dev = &tnetv107x_serial_device,
+ .serial_dev = tnetv107x_serial_device,
};
void __init tnetv107x_init(void)
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH v3 1/5] ARM: davinci: uart: move to devid based clk_get
@ 2013-07-19 13:06 ` Sekhar Nori
0 siblings, 0 replies; 24+ messages in thread
From: Sekhar Nori @ 2013-07-19 13:06 UTC (permalink / raw)
To: linux-arm-kernel
On Wednesday 19 June 2013 02:45 PM, Manjunathappa, Prakash wrote:
> For modules having single clock, clk_get should be done with dev_id.
> But current davinci implementation handles multiple instances
> of the UART devices with single platform_device_register. Hence clk_get
> is based on con_id rather than dev_id, this is not correct. Do
> platform_device_register for each instance and clk_get on dev_id.
>
> Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
[...]
> diff --git a/arch/arm/mach-davinci/serial.c b/arch/arm/mach-davinci/serial.c
> index f262581..57e6150 100644
> --- a/arch/arm/mach-davinci/serial.c
> +++ b/arch/arm/mach-davinci/serial.c
> @@ -76,7 +76,7 @@ int __init davinci_serial_setup_clk(unsigned instance, unsigned int *rate)
> char name[16];
> struct clk *clk;
> struct davinci_soc_info *soc_info = &davinci_soc_info;
> - struct device *dev = &soc_info->serial_dev->dev;
> + struct device *dev = &soc_info->serial_dev[instance].dev;
>
> sprintf(name, "uart%d", instance);
> clk = clk_get(dev, name);
Since the subject of your patch is to use avoid using the con_id for
clk_get() match, you should stop passing 'name' here. So instead do
clk = clk_get(dev, NULL);
I did this change locally (along with removal of now useless sprintf
call and name variable) and committed for inclusion in v3.12. Final
patch attached for reference.
Thanks,
Sekhar
---8<---
ARM: davinci: uart: move to devid based clk_get
For modules having single clock, clk_get should be done with dev_id.
But current davinci implementation handles multiple instances
of the UART devices with single platform_device_register. Hence clk_get
is based on con_id rather than dev_id, this is not correct. Do
platform_device_register for each instance and clk_get on dev_id.
Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
[nsekhar at ti.com: actually stop using con_id in clk_get()]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
index abbaf02..a3ffd52 100644
--- a/arch/arm/mach-davinci/da830.c
+++ b/arch/arm/mach-davinci/da830.c
@@ -395,9 +395,9 @@ static struct clk_lookup da830_clks[] = {
CLK(NULL, "tptc0", &tptc0_clk),
CLK(NULL, "tptc1", &tptc1_clk),
CLK("da830-mmc.0", NULL, &mmcsd_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("spi_davinci.0", NULL, &spi0_clk),
CLK("spi_davinci.1", NULL, &spi1_clk),
CLK(NULL, "ecap0", &ecap0_clk),
@@ -1199,7 +1199,7 @@ static struct davinci_soc_info davinci_soc_info_da830 = {
.gpio_base = DA8XX_GPIO_BASE,
.gpio_num = 128,
.gpio_irq = IRQ_DA8XX_GPIO0,
- .serial_dev = &da8xx_serial_device,
+ .serial_dev = da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
};
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index a0d4f60..d4274ab 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -451,9 +451,9 @@ static struct clk_lookup da850_clks[] = {
CLK(NULL, "tpcc1", &tpcc1_clk),
CLK(NULL, "tptc2", &tptc2_clk),
CLK("pruss_uio", "pruss", &pruss_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK(NULL, "aintc", &aintc_clk),
CLK(NULL, "gpio", &gpio_clk),
CLK("i2c_davinci.2", NULL, &i2c1_clk),
@@ -1301,7 +1301,7 @@ static struct davinci_soc_info davinci_soc_info_da850 = {
.gpio_base = DA8XX_GPIO_BASE,
.gpio_num = 144,
.gpio_irq = IRQ_DA8XX_GPIO0,
- .serial_dev = &da8xx_serial_device,
+ .serial_dev = da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
.sram_dma = DA8XX_SHARED_RAM_BASE,
.sram_len = SZ_128K,
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index 71a46a3..280f67d 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -68,7 +68,7 @@
void __iomem *da8xx_syscfg0_base;
void __iomem *da8xx_syscfg1_base;
-static struct plat_serial8250_port da8xx_serial_pdata[] = {
+static struct plat_serial8250_port da8xx_serial0_pdata[] = {
{
.mapbase = DA8XX_UART0_BASE,
.irq = IRQ_DA8XX_UARTINT0,
@@ -78,6 +78,11 @@ static struct plat_serial8250_port da8xx_serial_pdata[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port da8xx_serial1_pdata[] = {
+ {
.mapbase = DA8XX_UART1_BASE,
.irq = IRQ_DA8XX_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -86,6 +91,11 @@ static struct plat_serial8250_port da8xx_serial_pdata[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port da8xx_serial2_pdata[] = {
+ {
.mapbase = DA8XX_UART2_BASE,
.irq = IRQ_DA8XX_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -95,15 +105,33 @@ static struct plat_serial8250_port da8xx_serial_pdata[] = {
},
{
.flags = 0,
- },
+ }
};
-struct platform_device da8xx_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = da8xx_serial_pdata,
+struct platform_device da8xx_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = da8xx_serial0_pdata,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = da8xx_serial1_pdata,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = da8xx_serial2_pdata,
+ }
+ },
+ {
+ }
};
static s8 da8xx_queue_tc_mapping[][2] = {
diff --git a/arch/arm/mach-davinci/devices-tnetv107x.c b/arch/arm/mach-davinci/devices-tnetv107x.c
index 128cb9a..fc4a0fe 100644
--- a/arch/arm/mach-davinci/devices-tnetv107x.c
+++ b/arch/arm/mach-davinci/devices-tnetv107x.c
@@ -126,7 +126,7 @@ static struct platform_device edma_device = {
.dev.platform_data = tnetv107x_edma_info,
};
-static struct plat_serial8250_port serial_data[] = {
+static struct plat_serial8250_port serial0_platform_data[] = {
{
.mapbase = TNETV107X_UART0_BASE,
.irq = IRQ_TNETV107X_UART0,
@@ -137,6 +137,11 @@ static struct plat_serial8250_port serial_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port serial1_platform_data[] = {
+ {
.mapbase = TNETV107X_UART1_BASE,
.irq = IRQ_TNETV107X_UART1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -146,6 +151,11 @@ static struct plat_serial8250_port serial_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port serial2_platform_data[] = {
+ {
.mapbase = TNETV107X_UART2_BASE,
.irq = IRQ_TNETV107X_UART2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -156,13 +166,28 @@ static struct plat_serial8250_port serial_data[] = {
},
{
.flags = 0,
- },
+ }
};
-struct platform_device tnetv107x_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev.platform_data = serial_data,
+
+struct platform_device tnetv107x_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev.platform_data = serial0_platform_data,
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev.platform_data = serial1_platform_data,
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev.platform_data = serial2_platform_data,
+ },
+ {
+ }
};
static struct resource mmc0_resources[] = {
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 42ef53f..29fdbae 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -357,9 +357,9 @@ static struct clk_lookup dm355_clks[] = {
CLK(NULL, "clkout3", &clkout3_clk),
CLK(NULL, "arm", &arm_clk),
CLK(NULL, "mjcp", &mjcp_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK("davinci-mcbsp.0", NULL, &asp0_clk),
CLK("davinci-mcbsp.1", NULL, &asp1_clk),
@@ -922,7 +922,7 @@ static struct davinci_timer_info dm355_timer_info = {
.clocksource_id = T0_TOP,
};
-static struct plat_serial8250_port dm355_serial_platform_data[] = {
+static struct plat_serial8250_port dm355_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -932,6 +932,11 @@ static struct plat_serial8250_port dm355_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm355_serial1_platform_data[] = {
+ {
.mapbase = DAVINCI_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -940,6 +945,11 @@ static struct plat_serial8250_port dm355_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm355_serial2_platform_data[] = {
+ {
.mapbase = DM355_UART2_BASE,
.irq = IRQ_DM355_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -948,16 +958,34 @@ static struct plat_serial8250_port dm355_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm355_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm355_serial_platform_data,
+static struct platform_device dm355_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm355_serial0_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm355_serial1_platform_data,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = dm355_serial2_platform_data,
+ }
+ },
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm355 = {
@@ -981,7 +1009,7 @@ static struct davinci_soc_info davinci_soc_info_dm355 = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 104,
.gpio_irq = IRQ_DM355_GPIOBNK0,
- .serial_dev = &dm355_serial_device,
+ .serial_dev = dm355_serial_device,
.sram_dma = 0x00010000,
.sram_len = SZ_32K,
};
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index fa7af5e..b601189 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -455,8 +455,8 @@ static struct clk_lookup dm365_clks[] = {
CLK("vpss", "master", &vpss_master_clk),
CLK("vpss", "slave", &vpss_slave_clk),
CLK(NULL, "arm", &arm_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK("da830-mmc.0", NULL, &mmcsd0_clk),
CLK("da830-mmc.1", NULL, &mmcsd1_clk),
@@ -1041,7 +1041,7 @@ static struct davinci_timer_info dm365_timer_info = {
#define DM365_UART1_BASE (IO_PHYS + 0x106000)
-static struct plat_serial8250_port dm365_serial_platform_data[] = {
+static struct plat_serial8250_port dm365_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -1051,6 +1051,11 @@ static struct plat_serial8250_port dm365_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm365_serial1_platform_data[] = {
+ {
.mapbase = DM365_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -1059,16 +1064,27 @@ static struct plat_serial8250_port dm365_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm365_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm365_serial_platform_data,
+static struct platform_device dm365_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm365_serial0_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm365_serial1_platform_data,
+ }
},
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm365 = {
@@ -1093,7 +1109,7 @@ static struct davinci_soc_info davinci_soc_info_dm365 = {
.gpio_num = 104,
.gpio_irq = IRQ_DM365_GPIO0,
.gpio_unbanked = 8, /* really 16 ... skip muxed GPIOs */
- .serial_dev = &dm365_serial_device,
+ .serial_dev = dm365_serial_device,
.emac_pdata = &dm365_emac_pdata,
.sram_dma = 0x00010000,
.sram_len = SZ_32K,
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index a49d182..490eb8c 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -303,9 +303,9 @@ static struct clk_lookup dm644x_clks[] = {
CLK("vpss", "master", &vpss_master_clk),
CLK("vpss", "slave", &vpss_slave_clk),
CLK(NULL, "arm", &arm_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("davinci_emac.1", NULL, &emac_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK("palm_bk3710", NULL, &ide_clk),
@@ -813,7 +813,7 @@ static struct davinci_timer_info dm644x_timer_info = {
.clocksource_id = T0_TOP,
};
-static struct plat_serial8250_port dm644x_serial_platform_data[] = {
+static struct plat_serial8250_port dm644x_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -823,6 +823,11 @@ static struct plat_serial8250_port dm644x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm644x_serial1_platform_data[] = {
+ {
.mapbase = DAVINCI_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -831,6 +836,11 @@ static struct plat_serial8250_port dm644x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm644x_serial2_platform_data[] = {
+ {
.mapbase = DAVINCI_UART2_BASE,
.irq = IRQ_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -839,16 +849,34 @@ static struct plat_serial8250_port dm644x_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm644x_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm644x_serial_platform_data,
+static struct platform_device dm644x_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm644x_serial0_platform_data,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm644x_serial1_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = dm644x_serial2_platform_data,
+ }
+ },
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm644x = {
@@ -872,7 +900,7 @@ static struct davinci_soc_info davinci_soc_info_dm644x = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 71,
.gpio_irq = IRQ_GPIOBNK0,
- .serial_dev = &dm644x_serial_device,
+ .serial_dev = dm644x_serial_device,
.emac_pdata = &dm644x_emac_pdata,
.sram_dma = 0x00008000,
.sram_len = SZ_16K,
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index d1259e8..23609b1 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -342,9 +342,9 @@ static struct clk_lookup dm646x_clks[] = {
CLK(NULL, "edma_tc1", &edma_tc1_clk),
CLK(NULL, "edma_tc2", &edma_tc2_clk),
CLK(NULL, "edma_tc3", &edma_tc3_clk),
- CLK(NULL, "uart0", &uart0_clk),
- CLK(NULL, "uart1", &uart1_clk),
- CLK(NULL, "uart2", &uart2_clk),
+ CLK("serial8250.0", NULL, &uart0_clk),
+ CLK("serial8250.1", NULL, &uart1_clk),
+ CLK("serial8250.2", NULL, &uart2_clk),
CLK("i2c_davinci.1", NULL, &i2c_clk),
CLK(NULL, "gpio", &gpio_clk),
CLK("davinci-mcasp.0", NULL, &mcasp0_clk),
@@ -790,7 +790,7 @@ static struct davinci_timer_info dm646x_timer_info = {
.clocksource_id = T0_TOP,
};
-static struct plat_serial8250_port dm646x_serial_platform_data[] = {
+static struct plat_serial8250_port dm646x_serial0_platform_data[] = {
{
.mapbase = DAVINCI_UART0_BASE,
.irq = IRQ_UARTINT0,
@@ -800,6 +800,11 @@ static struct plat_serial8250_port dm646x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm646x_serial1_platform_data[] = {
+ {
.mapbase = DAVINCI_UART1_BASE,
.irq = IRQ_UARTINT1,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -808,6 +813,11 @@ static struct plat_serial8250_port dm646x_serial_platform_data[] = {
.regshift = 2,
},
{
+ .flags = 0,
+ }
+};
+static struct plat_serial8250_port dm646x_serial2_platform_data[] = {
+ {
.mapbase = DAVINCI_UART2_BASE,
.irq = IRQ_DM646X_UARTINT2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
@@ -816,16 +826,34 @@ static struct plat_serial8250_port dm646x_serial_platform_data[] = {
.regshift = 2,
},
{
- .flags = 0
- },
+ .flags = 0,
+ }
};
-static struct platform_device dm646x_serial_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = dm646x_serial_platform_data,
+static struct platform_device dm646x_serial_device[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = dm646x_serial0_platform_data,
+ }
+ },
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+ .dev = {
+ .platform_data = dm646x_serial1_platform_data,
+ }
},
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = dm646x_serial2_platform_data,
+ }
+ },
+ {
+ }
};
static struct davinci_soc_info davinci_soc_info_dm646x = {
@@ -849,7 +877,7 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
.gpio_base = DAVINCI_GPIO_BASE,
.gpio_num = 43, /* Only 33 usable */
.gpio_irq = IRQ_DM646X_GPIOBNK0,
- .serial_dev = &dm646x_serial_device,
+ .serial_dev = dm646x_serial_device,
.emac_pdata = &dm646x_emac_pdata,
.sram_dma = 0x10010000,
.sram_len = SZ_32K,
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index 7b41a5e..aae5307 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -111,7 +111,7 @@ void da8xx_restart(enum reboot_mode mode, const char *cmd);
void da8xx_rproc_reserve_cma(void);
int da8xx_register_rproc(void);
-extern struct platform_device da8xx_serial_device;
+extern struct platform_device da8xx_serial_device[];
extern struct emac_platform_data da8xx_emac_pdata;
extern struct da8xx_lcdc_platform_data sharp_lcd035q3dg01_pdata;
extern struct da8xx_lcdc_platform_data sharp_lk043t1dg01_pdata;
diff --git a/arch/arm/mach-davinci/include/mach/tnetv107x.h b/arch/arm/mach-davinci/include/mach/tnetv107x.h
index 16314c6..beb7c0e 100644
--- a/arch/arm/mach-davinci/include/mach/tnetv107x.h
+++ b/arch/arm/mach-davinci/include/mach/tnetv107x.h
@@ -50,7 +50,7 @@ struct tnetv107x_device_info {
};
extern struct platform_device tnetv107x_wdt_device;
-extern struct platform_device tnetv107x_serial_device;
+extern struct platform_device tnetv107x_serial_device[];
extern void tnetv107x_init(void);
extern void tnetv107x_devices_init(struct tnetv107x_device_info *);
diff --git a/arch/arm/mach-davinci/serial.c b/arch/arm/mach-davinci/serial.c
index f262581..2bc74c2 100644
--- a/arch/arm/mach-davinci/serial.c
+++ b/arch/arm/mach-davinci/serial.c
@@ -73,13 +73,11 @@ static void __init davinci_serial_reset(struct plat_serial8250_port *p)
/* Enable UART clock and obtain its rate */
int __init davinci_serial_setup_clk(unsigned instance, unsigned int *rate)
{
- char name[16];
struct clk *clk;
struct davinci_soc_info *soc_info = &davinci_soc_info;
- struct device *dev = &soc_info->serial_dev->dev;
+ struct device *dev = &soc_info->serial_dev[instance].dev;
- sprintf(name, "uart%d", instance);
- clk = clk_get(dev, name);
+ clk = clk_get(dev, NULL);
if (IS_ERR(clk)) {
pr_err("%s:%d: failed to get UART%d clock\n",
__func__, __LINE__, instance);
@@ -96,19 +94,25 @@ int __init davinci_serial_setup_clk(unsigned instance, unsigned int *rate)
int __init davinci_serial_init(struct davinci_uart_config *info)
{
- int i, ret;
+ int i, ret = 0;
struct davinci_soc_info *soc_info = &davinci_soc_info;
- struct device *dev = &soc_info->serial_dev->dev;
- struct plat_serial8250_port *p = dev->platform_data;
+ struct device *dev;
+ struct plat_serial8250_port *p;
/*
* Make sure the serial ports are muxed on at this point.
* You have to mux them off in device drivers later on if not needed.
*/
- for (i = 0; p->flags; i++, p++) {
+ for (i = 0; soc_info->serial_dev[i].dev.platform_data != NULL; i++) {
+ dev = &soc_info->serial_dev[i].dev;
+ p = dev->platform_data;
if (!(info->enabled_uarts & (1 << i)))
continue;
+ ret = platform_device_register(&soc_info->serial_dev[i]);
+ if (ret)
+ continue;
+
ret = davinci_serial_setup_clk(i, &p->uartclk);
if (ret)
continue;
@@ -125,6 +129,5 @@ int __init davinci_serial_init(struct davinci_uart_config *info)
if (p->membase && p->type != PORT_AR7)
davinci_serial_reset(p);
}
-
- return platform_device_register(soc_info->serial_dev);
+ return ret;
}
diff --git a/arch/arm/mach-davinci/tnetv107x.c b/arch/arm/mach-davinci/tnetv107x.c
index 4545667..f4d7fbb 100644
--- a/arch/arm/mach-davinci/tnetv107x.c
+++ b/arch/arm/mach-davinci/tnetv107x.c
@@ -264,7 +264,7 @@ static struct clk_lookup clks[] = {
CLK(NULL, "clk_chipcfg", &clk_chipcfg),
CLK("tnetv107x-ts.0", NULL, &clk_tsc),
CLK(NULL, "clk_rom", &clk_rom),
- CLK(NULL, "uart2", &clk_uart2),
+ CLK("serial8250.2", NULL, &clk_uart2),
CLK(NULL, "clk_pktsec", &clk_pktsec),
CLK("tnetv107x-rng.0", NULL, &clk_rng),
CLK("tnetv107x-pka.0", NULL, &clk_pka),
@@ -274,8 +274,8 @@ static struct clk_lookup clks[] = {
CLK(NULL, "clk_gpio", &clk_gpio),
CLK(NULL, "clk_mdio", &clk_mdio),
CLK("dm6441-mmc.0", NULL, &clk_sdio0),
- CLK(NULL, "uart0", &clk_uart0),
- CLK(NULL, "uart1", &clk_uart1),
+ CLK("serial8250.0", NULL, &clk_uart0),
+ CLK("serial8250.1", NULL, &clk_uart1),
CLK(NULL, "timer0", &clk_timer0),
CLK(NULL, "timer1", &clk_timer1),
CLK("tnetv107x_wdt.0", NULL, &clk_wdt_arm),
@@ -757,7 +757,7 @@ static struct davinci_soc_info tnetv107x_soc_info = {
.gpio_type = GPIO_TYPE_TNETV107X,
.gpio_num = TNETV107X_N_GPIO,
.timer_info = &timer_info,
- .serial_dev = &tnetv107x_serial_device,
+ .serial_dev = tnetv107x_serial_device,
};
void __init tnetv107x_init(void)
^ permalink raw reply related [flat|nested] 24+ messages in thread
* Re: [PATCH v3 2/5] ARM: davinci: da850: override device name of UART in DT kernel
2013-06-19 9:15 ` Manjunathappa, Prakash
@ 2013-07-19 14:50 ` Sekhar Nori
-1 siblings, 0 replies; 24+ messages in thread
From: Sekhar Nori @ 2013-07-19 14:50 UTC (permalink / raw)
To: Manjunathappa, Prakash
Cc: davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/,
linux-lFZ/pmaqli7XmaaqVzeoHQ,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ,
rob.herring-bsGFqQB8/DxBDgjK7y7TUQ,
grant.likely-s3s/WqlpOiPyB63q8FvJNQ,
linux-serial-u79uwXL29TY76Z2rM5mHXA, hs-ynQEQJNshbs,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
On Wednesday 19 June 2013 02:45 PM, Manjunathappa, Prakash wrote:
> Populate OF_DEV_AUXDATA with desired device name so as to prevent
> clk_get failures.
This can be folded into 1/5 itself.
Thanks,
Sekhar
^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH v3 2/5] ARM: davinci: da850: override device name of UART in DT kernel
@ 2013-07-19 14:50 ` Sekhar Nori
0 siblings, 0 replies; 24+ messages in thread
From: Sekhar Nori @ 2013-07-19 14:50 UTC (permalink / raw)
To: linux-arm-kernel
On Wednesday 19 June 2013 02:45 PM, Manjunathappa, Prakash wrote:
> Populate OF_DEV_AUXDATA with desired device name so as to prevent
> clk_get failures.
This can be folded into 1/5 itself.
Thanks,
Sekhar
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v3 3/5] ARM: davinci: da850: do not specify clock_frequency for UART DT node
2013-06-19 9:15 ` Manjunathappa, Prakash
@ 2013-07-22 10:03 ` Sekhar Nori
-1 siblings, 0 replies; 24+ messages in thread
From: Sekhar Nori @ 2013-07-22 10:03 UTC (permalink / raw)
To: Manjunathappa, Prakash
Cc: davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/,
linux-lFZ/pmaqli7XmaaqVzeoHQ,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ,
rob.herring-bsGFqQB8/DxBDgjK7y7TUQ,
grant.likely-s3s/WqlpOiPyB63q8FvJNQ,
linux-serial-u79uwXL29TY76Z2rM5mHXA, hs-ynQEQJNshbs,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
On Wednesday 19 June 2013 02:45 PM, Manjunathappa, Prakash wrote:
> DT kernel on da850-evm comes up with garbled UART logs. This is because
> of mismatch in actual module clock rate and rate specified(clock-frequency)
> in DT blob. kernel should not assume or depend on bootloaders clock
> configuration, instead let it find the clock rate at runtime.
>
> Issue discussed here before arriving on this implementation:
> "ARM: davinci: da850 evm: update clock rate for UART 1/2 DT nodes"
> https://patchwork.kernel.org/patch/2162271/
>
> Signed-off-by: Manjunathappa, Prakash <prakash.pm-l0cyMroinI0@public.gmane.org>
Adding to v3.12/soc branch of my tree.
Thanks,
Sekhar
^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH v3 3/5] ARM: davinci: da850: do not specify clock_frequency for UART DT node
@ 2013-07-22 10:03 ` Sekhar Nori
0 siblings, 0 replies; 24+ messages in thread
From: Sekhar Nori @ 2013-07-22 10:03 UTC (permalink / raw)
To: linux-arm-kernel
On Wednesday 19 June 2013 02:45 PM, Manjunathappa, Prakash wrote:
> DT kernel on da850-evm comes up with garbled UART logs. This is because
> of mismatch in actual module clock rate and rate specified(clock-frequency)
> in DT blob. kernel should not assume or depend on bootloaders clock
> configuration, instead let it find the clock rate at runtime.
>
> Issue discussed here before arriving on this implementation:
> "ARM: davinci: da850 evm: update clock rate for UART 1/2 DT nodes"
> https://patchwork.kernel.org/patch/2162271/
>
> Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Adding to v3.12/soc branch of my tree.
Thanks,
Sekhar
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v3 4/5] ARM: davinci: da8xx: remove da8xx_uart_clk_enable
2013-06-19 9:15 ` Manjunathappa, Prakash
@ 2013-07-22 10:03 ` Sekhar Nori
-1 siblings, 0 replies; 24+ messages in thread
From: Sekhar Nori @ 2013-07-22 10:03 UTC (permalink / raw)
To: Manjunathappa, Prakash
Cc: davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/,
linux-lFZ/pmaqli7XmaaqVzeoHQ,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ,
rob.herring-bsGFqQB8/DxBDgjK7y7TUQ,
grant.likely-s3s/WqlpOiPyB63q8FvJNQ,
linux-serial-u79uwXL29TY76Z2rM5mHXA, hs-ynQEQJNshbs,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
On Wednesday 19 June 2013 02:45 PM, Manjunathappa, Prakash wrote:
> Serial clocks are enabled from of_platform_serial_setup:of_serial.c,
> so remove davinci_serial_setup_clk from here.
>
> Signed-off-by: Manjunathappa, Prakash <prakash.pm-l0cyMroinI0@public.gmane.org>
Adding to v3.12/soc branch.
Thanks,
Sekhar
^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH v3 4/5] ARM: davinci: da8xx: remove da8xx_uart_clk_enable
@ 2013-07-22 10:03 ` Sekhar Nori
0 siblings, 0 replies; 24+ messages in thread
From: Sekhar Nori @ 2013-07-22 10:03 UTC (permalink / raw)
To: linux-arm-kernel
On Wednesday 19 June 2013 02:45 PM, Manjunathappa, Prakash wrote:
> Serial clocks are enabled from of_platform_serial_setup:of_serial.c,
> so remove davinci_serial_setup_clk from here.
>
> Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Adding to v3.12/soc branch.
Thanks,
Sekhar
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v3 5/5] ARM: davinci: serial: platform code cleanup
2013-06-19 9:15 ` Manjunathappa, Prakash
@ 2013-07-22 10:11 ` Sekhar Nori
-1 siblings, 0 replies; 24+ messages in thread
From: Sekhar Nori @ 2013-07-22 10:11 UTC (permalink / raw)
To: Manjunathappa, Prakash
Cc: davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/,
linux-lFZ/pmaqli7XmaaqVzeoHQ,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ,
rob.herring-bsGFqQB8/DxBDgjK7y7TUQ,
grant.likely-s3s/WqlpOiPyB63q8FvJNQ,
linux-serial-u79uwXL29TY76Z2rM5mHXA, hs-ynQEQJNshbs,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
On Wednesday 19 June 2013 02:45 PM, Manjunathappa, Prakash wrote:
> 1) "struct davinci_uart_config" is introduced to specify
> UART ports brought out or enabled on the board. But
> none of the boards use them for that purpose, so clean
> it up.
> 2) Have pointer to platform device as a argument for
> davinci_serial_init(), no need of serial_dev in
> struct soc_info now.
> 3) No need of davinci_serial_setup_clk(), not called from
> multiple places, hence reduce function call overhead.
1) and 2) are related but 3) can be moved into a different patch - this
patch will otherwise be doing too many things (hint for that is a vague
headline and too many items to list in description)
Can you respin just this patch based on v3.12/soc branch of my tree?
Thanks,
Sekhar
^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH v3 5/5] ARM: davinci: serial: platform code cleanup
@ 2013-07-22 10:11 ` Sekhar Nori
0 siblings, 0 replies; 24+ messages in thread
From: Sekhar Nori @ 2013-07-22 10:11 UTC (permalink / raw)
To: linux-arm-kernel
On Wednesday 19 June 2013 02:45 PM, Manjunathappa, Prakash wrote:
> 1) "struct davinci_uart_config" is introduced to specify
> UART ports brought out or enabled on the board. But
> none of the boards use them for that purpose, so clean
> it up.
> 2) Have pointer to platform device as a argument for
> davinci_serial_init(), no need of serial_dev in
> struct soc_info now.
> 3) No need of davinci_serial_setup_clk(), not called from
> multiple places, hence reduce function call overhead.
1) and 2) are related but 3) can be moved into a different patch - this
patch will otherwise be doing too many things (hint for that is a vague
headline and too many items to list in description)
Can you respin just this patch based on v3.12/soc branch of my tree?
Thanks,
Sekhar
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH v3 5/5] ARM: davinci: serial: platform code cleanup
2013-07-22 10:11 ` Sekhar Nori
@ 2013-08-14 11:27 ` Sekhar Nori
-1 siblings, 0 replies; 24+ messages in thread
From: Sekhar Nori @ 2013-08-14 11:27 UTC (permalink / raw)
To: Manjunathappa, Prakash
Cc: davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/,
linux-lFZ/pmaqli7XmaaqVzeoHQ,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ,
rob.herring-bsGFqQB8/DxBDgjK7y7TUQ,
grant.likely-s3s/WqlpOiPyB63q8FvJNQ,
linux-serial-u79uwXL29TY76Z2rM5mHXA, hs-ynQEQJNshbs,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
Hi Prakash,
On Monday 22 July 2013 10:11 AM, Sekhar Nori wrote:
> On Wednesday 19 June 2013 02:45 PM, Manjunathappa, Prakash wrote:
>> 1) "struct davinci_uart_config" is introduced to specify
>> UART ports brought out or enabled on the board. But
>> none of the boards use them for that purpose, so clean
>> it up.
>> 2) Have pointer to platform device as a argument for
>> davinci_serial_init(), no need of serial_dev in
>> struct soc_info now.
>> 3) No need of davinci_serial_setup_clk(), not called from
>> multiple places, hence reduce function call overhead.
>
> 1) and 2) are related but 3) can be moved into a different patch - this
> patch will otherwise be doing too many things (hint for that is a vague
> headline and too many items to list in description)
>
> Can you respin just this patch based on v3.12/soc branch of my tree?
Since I did not get a response to this and the window for v3.12 is
closing fast, I went ahead and did the split myself. Here is the result:
https://git.kernel.org/cgit/linux/kernel/git/nsekhar/linux-davinci.git/log/?h=v3.12/soc
Thanks,
Sekhar
^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH v3 5/5] ARM: davinci: serial: platform code cleanup
@ 2013-08-14 11:27 ` Sekhar Nori
0 siblings, 0 replies; 24+ messages in thread
From: Sekhar Nori @ 2013-08-14 11:27 UTC (permalink / raw)
To: linux-arm-kernel
Hi Prakash,
On Monday 22 July 2013 10:11 AM, Sekhar Nori wrote:
> On Wednesday 19 June 2013 02:45 PM, Manjunathappa, Prakash wrote:
>> 1) "struct davinci_uart_config" is introduced to specify
>> UART ports brought out or enabled on the board. But
>> none of the boards use them for that purpose, so clean
>> it up.
>> 2) Have pointer to platform device as a argument for
>> davinci_serial_init(), no need of serial_dev in
>> struct soc_info now.
>> 3) No need of davinci_serial_setup_clk(), not called from
>> multiple places, hence reduce function call overhead.
>
> 1) and 2) are related but 3) can be moved into a different patch - this
> patch will otherwise be doing too many things (hint for that is a vague
> headline and too many items to list in description)
>
> Can you respin just this patch based on v3.12/soc branch of my tree?
Since I did not get a response to this and the window for v3.12 is
closing fast, I went ahead and did the split myself. Here is the result:
https://git.kernel.org/cgit/linux/kernel/git/nsekhar/linux-davinci.git/log/?h=v3.12/soc
Thanks,
Sekhar
^ permalink raw reply [flat|nested] 24+ messages in thread
end of thread, other threads:[~2013-08-14 11:27 UTC | newest]
Thread overview: 24+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-06-19 9:15 [PATCH v3 0/5] ARM: davinci: fix UART clock enabling Manjunathappa, Prakash
2013-06-19 9:15 ` Manjunathappa, Prakash
[not found] ` <1371633342-1210-1-git-send-email-prakash.pm-l0cyMroinI0@public.gmane.org>
2013-06-19 9:15 ` [PATCH v3 1/5] ARM: davinci: uart: move to devid based clk_get Manjunathappa, Prakash
2013-06-19 9:15 ` Manjunathappa, Prakash
[not found] ` <1371633342-1210-2-git-send-email-prakash.pm-l0cyMroinI0@public.gmane.org>
2013-07-19 13:06 ` Sekhar Nori
2013-07-19 13:06 ` Sekhar Nori
2013-06-19 9:15 ` [PATCH v3 2/5] ARM: davinci: da850: override device name of UART in DT kernel Manjunathappa, Prakash
2013-06-19 9:15 ` Manjunathappa, Prakash
[not found] ` <1371633342-1210-3-git-send-email-prakash.pm-l0cyMroinI0@public.gmane.org>
2013-07-19 14:50 ` Sekhar Nori
2013-07-19 14:50 ` Sekhar Nori
2013-06-19 9:15 ` [PATCH v3 3/5] ARM: davinci: da850: do not specify clock_frequency for UART DT node Manjunathappa, Prakash
2013-06-19 9:15 ` Manjunathappa, Prakash
[not found] ` <1371633342-1210-4-git-send-email-prakash.pm-l0cyMroinI0@public.gmane.org>
2013-07-22 10:03 ` Sekhar Nori
2013-07-22 10:03 ` Sekhar Nori
2013-06-19 9:15 ` [PATCH v3 4/5] ARM: davinci: da8xx: remove da8xx_uart_clk_enable Manjunathappa, Prakash
2013-06-19 9:15 ` Manjunathappa, Prakash
[not found] ` <1371633342-1210-5-git-send-email-prakash.pm-l0cyMroinI0@public.gmane.org>
2013-07-22 10:03 ` Sekhar Nori
2013-07-22 10:03 ` Sekhar Nori
2013-06-19 9:15 ` [PATCH v3 5/5] ARM: davinci: serial: platform code cleanup Manjunathappa, Prakash
2013-06-19 9:15 ` Manjunathappa, Prakash
[not found] ` <1371633342-1210-6-git-send-email-prakash.pm-l0cyMroinI0@public.gmane.org>
2013-07-22 10:11 ` Sekhar Nori
2013-07-22 10:11 ` Sekhar Nori
[not found] ` <51ED0534.2080408-l0cyMroinI0@public.gmane.org>
2013-08-14 11:27 ` Sekhar Nori
2013-08-14 11:27 ` Sekhar Nori
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