[PATCH 0/9] ARM: renesas: shmobile and multi_v7 defconfig updates

[PATCH 0/9] ARM: renesas: shmobile and multi_v7 defconfig updates

[Geert Uytterhoeven]

	Hi Arnd, Kevin, Magnus, Olof, Simon,

This patch series updates shmobile_defconfig and multi_v7_defconfig to
(re-)enable some features:
  - Re-enable R-Car PCIe (shmobile_defconfig),
  - Re-enable R-Car XHCI (shmobile_defconfig),
  - Re-enable R-Car sound (both),
  - Update DRM bridge (both),
  - Enable serial port DMA (both).

There also a patch included to refresh shmobile_defconfig.
To avoid conflicts, I didn't refresh multi_v7_defconfig (although it could
definitely use a refresh), and only made "simple" changes to it.

Thanks!

Geert Uytterhoeven (9):
  ARM: shmobile: defconfig: Enable missing PCIE_RCAR dependency
  ARM: shmobile: defconfig: Replace USB_XHCI_RCAR by USB_XHCI_PLATFORM
  ARM: shmobile: defconfig: Replace SND_SOC_RSRC_CARD by
    SND_SIMPLE_SCU_CARD
  ARM: shmobile: defconfig: Replace DRM_RCAR_HDMI by generic bridge
    options
  ARM: shmobile: defconfig: Enable DMA for serial ports
  ARM: shmobile: defconfig: Refresh
  ARM: multi_v7_defconfig: Replace SND_SOC_RSRC_CARD by
    SND_SIMPLE_SCU_CARD
  ARM: multi_v7_defconfig: Replace DRM_RCAR_HDMI by generic bridge
    options
  ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

 arch/arm/configs/multi_v7_defconfig |  5 +++--
 arch/arm/configs/shmobile_defconfig | 16 +++++++++-------
 2 files changed, 12 insertions(+), 9 deletions(-)

-- 
2.7.4

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

[PATCH 0/9] ARM: renesas: shmobile and multi_v7 defconfig updates

[Geert Uytterhoeven]

	Hi Arnd, Kevin, Magnus, Olof, Simon,

This patch series updates shmobile_defconfig and multi_v7_defconfig to
(re-)enable some features:
  - Re-enable R-Car PCIe (shmobile_defconfig),
  - Re-enable R-Car XHCI (shmobile_defconfig),
  - Re-enable R-Car sound (both),
  - Update DRM bridge (both),
  - Enable serial port DMA (both).

There also a patch included to refresh shmobile_defconfig.
To avoid conflicts, I didn't refresh multi_v7_defconfig (although it could
definitely use a refresh), and only made "simple" changes to it.

Thanks!

Geert Uytterhoeven (9):
  ARM: shmobile: defconfig: Enable missing PCIE_RCAR dependency
  ARM: shmobile: defconfig: Replace USB_XHCI_RCAR by USB_XHCI_PLATFORM
  ARM: shmobile: defconfig: Replace SND_SOC_RSRC_CARD by
    SND_SIMPLE_SCU_CARD
  ARM: shmobile: defconfig: Replace DRM_RCAR_HDMI by generic bridge
    options
  ARM: shmobile: defconfig: Enable DMA for serial ports
  ARM: shmobile: defconfig: Refresh
  ARM: multi_v7_defconfig: Replace SND_SOC_RSRC_CARD by
    SND_SIMPLE_SCU_CARD
  ARM: multi_v7_defconfig: Replace DRM_RCAR_HDMI by generic bridge
    options
  ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

 arch/arm/configs/multi_v7_defconfig |  5 +++--
 arch/arm/configs/shmobile_defconfig | 16 +++++++++-------
 2 files changed, 12 insertions(+), 9 deletions(-)

-- 
2.7.4

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

[PATCH 1/9] ARM: shmobile: defconfig: Enable missing PCIE_RCAR dependency

[Geert Uytterhoeven]

PCIE_RCAR is no longer enabled, as it now has a dependency on
PCI_MSI_IRQ_DOMAIN instead of selecting PCI_MSI and PCI_MSI_IRQ_DOMAIN.
Fix this by explicitly enabling PCIE_RCAR in shmobile_defconfig.

Fixes: 3ee803641e76bea7 ("PCI/MSI: irqchip: Fix PCI_MSI dependencies")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/configs/shmobile_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index 3c66a422fb4df567..04cd18424016eba5 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -27,6 +27,7 @@ CONFIG_ARCH_SH73A0=y
 CONFIG_PL310_ERRATA_588369=y
 CONFIG_ARM_ERRATA_754322=y
 CONFIG_PCI=y
+CONFIG_PCI_MSI=y
 CONFIG_PCI_RCAR_GEN2=y
 CONFIG_PCIE_RCAR=y
 CONFIG_SMP=y
-- 
2.7.4

[PATCH 1/9] ARM: shmobile: defconfig: Enable missing PCIE_RCAR dependency

[Geert Uytterhoeven]

PCIE_RCAR is no longer enabled, as it now has a dependency on
PCI_MSI_IRQ_DOMAIN instead of selecting PCI_MSI and PCI_MSI_IRQ_DOMAIN.
Fix this by explicitly enabling PCIE_RCAR in shmobile_defconfig.

Fixes: 3ee803641e76bea7 ("PCI/MSI: irqchip: Fix PCI_MSI dependencies")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/configs/shmobile_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index 3c66a422fb4df567..04cd18424016eba5 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -27,6 +27,7 @@ CONFIG_ARCH_SH73A0=y
 CONFIG_PL310_ERRATA_588369=y
 CONFIG_ARM_ERRATA_754322=y
 CONFIG_PCI=y
+CONFIG_PCI_MSI=y
 CONFIG_PCI_RCAR_GEN2=y
 CONFIG_PCIE_RCAR=y
 CONFIG_SMP=y
-- 
2.7.4

[PATCH 2/9] ARM: shmobile: defconfig: Replace USB_XHCI_RCAR by USB_XHCI_PLATFORM

[Geert Uytterhoeven]

USB_XHCI_RCAR is no longer enabled, as it now has a dependency on
USB_XHCI_PLATFORM, instead of selecting USB_XHCI_PLATFORM.
As the latter selects the former if ARCH_RENESAS, fix this by replacing
USB_XHCI_RCAR by USB_XHCI_PLATFORM in shmobile_defconfig.

Fixes: f879fc32aa0c96fb ("usb: host: xhci-rcar: Avoid long wait in xhci_reset()")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/configs/shmobile_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index 04cd18424016eba5..bfbeae3f6a884987 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -175,7 +175,7 @@ CONFIG_SND_SOC_AK4642=y
 CONFIG_SND_SOC_WM8978=y
 CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
-CONFIG_USB_XHCI_RCAR=y
+CONFIG_USB_XHCI_PLATFORM=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_R8A66597_HCD=y
-- 
2.7.4

[PATCH 2/9] ARM: shmobile: defconfig: Replace USB_XHCI_RCAR by USB_XHCI_PLATFORM

[Geert Uytterhoeven]

USB_XHCI_RCAR is no longer enabled, as it now has a dependency on
USB_XHCI_PLATFORM, instead of selecting USB_XHCI_PLATFORM.
As the latter selects the former if ARCH_RENESAS, fix this by replacing
USB_XHCI_RCAR by USB_XHCI_PLATFORM in shmobile_defconfig.

Fixes: f879fc32aa0c96fb ("usb: host: xhci-rcar: Avoid long wait in xhci_reset()")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/configs/shmobile_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index 04cd18424016eba5..bfbeae3f6a884987 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -175,7 +175,7 @@ CONFIG_SND_SOC_AK4642=y
 CONFIG_SND_SOC_WM8978=y
 CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
-CONFIG_USB_XHCI_RCAR=y
+CONFIG_USB_XHCI_PLATFORM=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_R8A66597_HCD=y
-- 
2.7.4

[PATCH 3/9] ARM: shmobile: defconfig: Replace SND_SOC_RSRC_CARD by SND_SIMPLE_SCU_CARD

[Geert Uytterhoeven]

SND_SOC_RSRC_CARD was renamed SND_SIMPLE_SCU_CARD, hence update
shmobile_defconfig.

Fixes: d12c6216c4a58f9f ("ASoC: rsrc-card: rename rsrc-card to simple-scu-card phase3")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/configs/shmobile_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index bfbeae3f6a884987..ab9a45938c3cd34f 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -170,9 +170,9 @@ CONFIG_SND=y
 CONFIG_SND_SOC=y
 CONFIG_SND_SOC_SH4_FSI=y
 CONFIG_SND_SOC_RCAR=y
-CONFIG_SND_SOC_RSRC_CARD=y
 CONFIG_SND_SOC_AK4642=y
 CONFIG_SND_SOC_WM8978=y
+CONFIG_SND_SIMPLE_SCU_CARD=y
 CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_PLATFORM=y
-- 
2.7.4

[PATCH 3/9] ARM: shmobile: defconfig: Replace SND_SOC_RSRC_CARD by SND_SIMPLE_SCU_CARD

[Geert Uytterhoeven]

SND_SOC_RSRC_CARD was renamed SND_SIMPLE_SCU_CARD, hence update
shmobile_defconfig.

Fixes: d12c6216c4a58f9f ("ASoC: rsrc-card: rename rsrc-card to simple-scu-card phase3")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/configs/shmobile_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index bfbeae3f6a884987..ab9a45938c3cd34f 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -170,9 +170,9 @@ CONFIG_SND=y
 CONFIG_SND_SOC=y
 CONFIG_SND_SOC_SH4_FSI=y
 CONFIG_SND_SOC_RCAR=y
-CONFIG_SND_SOC_RSRC_CARD=y
 CONFIG_SND_SOC_AK4642=y
 CONFIG_SND_SOC_WM8978=y
+CONFIG_SND_SIMPLE_SCU_CARD=y
 CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_PLATFORM=y
-- 
2.7.4

[PATCH 4/9] ARM: shmobile: defconfig: Replace DRM_RCAR_HDMI by generic bridge options

[Geert Uytterhoeven]

The manual bridge implementation was removed in favor of the generic
one, so now we need to enable standard bridge drivers like
DRM_DUMB_VGA_DAC and DRM_I2C_ADV7511.
DRM_I2C_ADV7511 was already enabled, but the (newer) audio part wasn't.

Fixes: 5c602531feb3db39 ("drm: rcar-du: Replace manual bridge implementation with DRM bridge")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/configs/shmobile_defconfig | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index ab9a45938c3cd34f..b8d2dcbc9cc745b6 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -154,10 +154,11 @@ CONFIG_VIDEO_ADV7180=y
 CONFIG_VIDEO_ADV7604=y
 CONFIG_VIDEO_ML86V7667=y
 CONFIG_DRM=y
-CONFIG_DRM_I2C_ADV7511=y
 CONFIG_DRM_RCAR_DU=y
-CONFIG_DRM_RCAR_HDMI=y
 CONFIG_DRM_RCAR_LVDS=y
+CONFIG_DRM_DUMB_VGA_DAC=y
+CONFIG_DRM_I2C_ADV7511=y
+CONFIG_DRM_I2C_ADV7511_AUDIO=y
 CONFIG_FB_SH_MOBILE_LCDC=y
 CONFIG_FB_SH_MOBILE_MERAM=y
 # CONFIG_LCD_CLASS_DEVICE is not set
-- 
2.7.4

[PATCH 4/9] ARM: shmobile: defconfig: Replace DRM_RCAR_HDMI by generic bridge options

[Geert Uytterhoeven]

The manual bridge implementation was removed in favor of the generic
one, so now we need to enable standard bridge drivers like
DRM_DUMB_VGA_DAC and DRM_I2C_ADV7511.
DRM_I2C_ADV7511 was already enabled, but the (newer) audio part wasn't.

Fixes: 5c602531feb3db39 ("drm: rcar-du: Replace manual bridge implementation with DRM bridge")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/configs/shmobile_defconfig | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index ab9a45938c3cd34f..b8d2dcbc9cc745b6 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -154,10 +154,11 @@ CONFIG_VIDEO_ADV7180=y
 CONFIG_VIDEO_ADV7604=y
 CONFIG_VIDEO_ML86V7667=y
 CONFIG_DRM=y
-CONFIG_DRM_I2C_ADV7511=y
 CONFIG_DRM_RCAR_DU=y
-CONFIG_DRM_RCAR_HDMI=y
 CONFIG_DRM_RCAR_LVDS=y
+CONFIG_DRM_DUMB_VGA_DAC=y
+CONFIG_DRM_I2C_ADV7511=y
+CONFIG_DRM_I2C_ADV7511_AUDIO=y
 CONFIG_FB_SH_MOBILE_LCDC=y
 CONFIG_FB_SH_MOBILE_MERAM=y
 # CONFIG_LCD_CLASS_DEVICE is not set
-- 
2.7.4

[PATCH 5/9] ARM: shmobile: defconfig: Enable DMA for serial ports

[Geert Uytterhoeven]

DMA for (H)SCIF(A|B) serial ports on R-Car Gen2 and RZ/G1 SoCs is
considered stable, hence enable it by default.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/configs/shmobile_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index b8d2dcbc9cc745b6..dd9d1f9ede6e7f34 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -106,6 +106,7 @@ CONFIG_SERIAL_8250_EM=y
 CONFIG_SERIAL_SH_SCI=y
 CONFIG_SERIAL_SH_SCI_NR_UARTS=20
 CONFIG_SERIAL_SH_SCI_CONSOLE=y
+CONFIG_SERIAL_SH_SCI_DMA=y
 CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_MUX=y
 CONFIG_I2C_DEMUX_PINCTRL=y
-- 
2.7.4

[PATCH 5/9] ARM: shmobile: defconfig: Enable DMA for serial ports

[Geert Uytterhoeven]

DMA for (H)SCIF(A|B) serial ports on R-Car Gen2 and RZ/G1 SoCs is
considered stable, hence enable it by default.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/configs/shmobile_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index b8d2dcbc9cc745b6..dd9d1f9ede6e7f34 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -106,6 +106,7 @@ CONFIG_SERIAL_8250_EM=y
 CONFIG_SERIAL_SH_SCI=y
 CONFIG_SERIAL_SH_SCI_NR_UARTS=20
 CONFIG_SERIAL_SH_SCI_CONSOLE=y
+CONFIG_SERIAL_SH_SCI_DMA=y
 CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_MUX=y
 CONFIG_I2C_DEMUX_PINCTRL=y
-- 
2.7.4

[PATCH 6/9] ARM: shmobile: defconfig: Refresh

[Geert Uytterhoeven]

  - Several options were moved,
  - INPUT_MOUSEDEV_PSAUX is no longer enabled by default since commit
    73d8ef76006b649f ("Input: mousedev - stop offering PS/2 to userspace
    by default").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/configs/shmobile_defconfig | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index dd9d1f9ede6e7f34..1cad253c030f4b25 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -89,9 +89,8 @@ CONFIG_SMSC911X=y
 # CONFIG_NET_VENDOR_STMICRO is not set
 # CONFIG_NET_VENDOR_VIA is not set
 # CONFIG_NET_VENDOR_WIZNET is not set
-CONFIG_SMSC_PHY=y
 CONFIG_MICREL_PHY=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_SMSC_PHY=y
 CONFIG_INPUT_EVDEV=y
 CONFIG_KEYBOARD_GPIO=y
 # CONFIG_INPUT_MOUSE is not set
@@ -123,9 +122,9 @@ CONFIG_SPI_SH_HSPI=y
 CONFIG_GPIO_EM=y
 CONFIG_GPIO_RCAR=y
 CONFIG_GPIO_PCF857X=y
-CONFIG_POWER_SUPPLY=y
 CONFIG_POWER_RESET=y
 CONFIG_POWER_RESET_RMOBILE=y
+CONFIG_POWER_SUPPLY=y
 # CONFIG_HWMON is not set
 CONFIG_THERMAL=y
 CONFIG_CPU_THERMAL=y
-- 
2.7.4

[PATCH 6/9] ARM: shmobile: defconfig: Refresh

[Geert Uytterhoeven]

  - Several options were moved,
  - INPUT_MOUSEDEV_PSAUX is no longer enabled by default since commit
    73d8ef76006b649f ("Input: mousedev - stop offering PS/2 to userspace
    by default").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/configs/shmobile_defconfig | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index dd9d1f9ede6e7f34..1cad253c030f4b25 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -89,9 +89,8 @@ CONFIG_SMSC911X=y
 # CONFIG_NET_VENDOR_STMICRO is not set
 # CONFIG_NET_VENDOR_VIA is not set
 # CONFIG_NET_VENDOR_WIZNET is not set
-CONFIG_SMSC_PHY=y
 CONFIG_MICREL_PHY=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_SMSC_PHY=y
 CONFIG_INPUT_EVDEV=y
 CONFIG_KEYBOARD_GPIO=y
 # CONFIG_INPUT_MOUSE is not set
@@ -123,9 +122,9 @@ CONFIG_SPI_SH_HSPI=y
 CONFIG_GPIO_EM=y
 CONFIG_GPIO_RCAR=y
 CONFIG_GPIO_PCF857X=y
-CONFIG_POWER_SUPPLY=y
 CONFIG_POWER_RESET=y
 CONFIG_POWER_RESET_RMOBILE=y
+CONFIG_POWER_SUPPLY=y
 # CONFIG_HWMON is not set
 CONFIG_THERMAL=y
 CONFIG_CPU_THERMAL=y
-- 
2.7.4

[PATCH 7/9] ARM: multi_v7_defconfig: Replace SND_SOC_RSRC_CARD by SND_SIMPLE_SCU_CARD

[Geert Uytterhoeven]

SND_SOC_RSRC_CARD was renamed SND_SIMPLE_SCU_CARD, hence update
multi_v7_defconfig.

Fixes: d12c6216c4a58f9f ("ASoC: rsrc-card: rename rsrc-card to simple-scu-card phase3")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
multi_v7_defconfig is in desperate need of a refresh.

Again, I just replaced the symbols, and ignored any other churn.
---
 arch/arm/configs/multi_v7_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 4d19c1b4b8e7c1e8..7fa1746970ecc531 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -650,7 +650,7 @@ CONFIG_SND_SOC_SMDK_WM8994_PCM=m
 CONFIG_SND_SOC_SNOW=m
 CONFIG_SND_SOC_SH4_FSI=m
 CONFIG_SND_SOC_RCAR=m
-CONFIG_SND_SOC_RSRC_CARD=m
+CONFIG_SND_SIMPLE_SCU_CARD=m
 CONFIG_SND_SUN4I_CODEC=m
 CONFIG_SND_SOC_TEGRA=m
 CONFIG_SND_SOC_TEGRA_RT5640=m
-- 
2.7.4

[PATCH 7/9] ARM: multi_v7_defconfig: Replace SND_SOC_RSRC_CARD by SND_SIMPLE_SCU_CARD

[Geert Uytterhoeven]

SND_SOC_RSRC_CARD was renamed SND_SIMPLE_SCU_CARD, hence update
multi_v7_defconfig.

Fixes: d12c6216c4a58f9f ("ASoC: rsrc-card: rename rsrc-card to simple-scu-card phase3")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
multi_v7_defconfig is in desperate need of a refresh.

Again, I just replaced the symbols, and ignored any other churn.
---
 arch/arm/configs/multi_v7_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 4d19c1b4b8e7c1e8..7fa1746970ecc531 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -650,7 +650,7 @@ CONFIG_SND_SOC_SMDK_WM8994_PCM=m
 CONFIG_SND_SOC_SNOW=m
 CONFIG_SND_SOC_SH4_FSI=m
 CONFIG_SND_SOC_RCAR=m
-CONFIG_SND_SOC_RSRC_CARD=m
+CONFIG_SND_SIMPLE_SCU_CARD=m
 CONFIG_SND_SUN4I_CODEC=m
 CONFIG_SND_SOC_TEGRA=m
 CONFIG_SND_SOC_TEGRA_RT5640=m
-- 
2.7.4

[PATCH 8/9] ARM: multi_v7_defconfig: Replace DRM_RCAR_HDMI by generic bridge options

[Geert Uytterhoeven]

The manual bridge implementation was removed in favor of the generic
one, so now we need to enable standard bridge drivers like
DRM_DUMB_VGA_DAC and DRM_I2C_ADV7511.
Both were already enabled, but the (newer) ADV7511 audio part wasn't.

Fixes: 5c602531feb3db39 ("drm: rcar-du: Replace manual bridge implementation with DRM bridge")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
multi_v7_defconfig is in desperate need of a refresh.

To reduce conflicts, I went for the simple option of adding
CONFIG_DRM_I2C_ADV7511_AUDIO below CONFIG_DRM_I2C_ADV7511, instead of
moving CONFIG_DRM_I2C_ADV7511 and CONFIG_DRM_DUMB_VGA_DAC around.
---
 arch/arm/configs/multi_v7_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 7fa1746970ecc531..ea2075d8e185f7aa 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -584,6 +584,7 @@ CONFIG_VIDEO_ADV7180=m
 CONFIG_VIDEO_ML86V7667=m
 CONFIG_DRM=y
 CONFIG_DRM_I2C_ADV7511=m
+CONFIG_DRM_I2C_ADV7511_AUDIO=y
 # CONFIG_DRM_I2C_CH7006 is not set
 # CONFIG_DRM_I2C_SIL164 is not set
 CONFIG_DRM_DUMB_VGA_DAC=m
@@ -603,7 +604,6 @@ CONFIG_ROCKCHIP_DW_MIPI_DSI=y
 CONFIG_ROCKCHIP_INNO_HDMI=y
 CONFIG_DRM_ATMEL_HLCDC=m
 CONFIG_DRM_RCAR_DU=m
-CONFIG_DRM_RCAR_HDMI=y
 CONFIG_DRM_RCAR_LVDS=y
 CONFIG_DRM_SUN4I=m
 CONFIG_DRM_TEGRA=y
-- 
2.7.4

[PATCH 8/9] ARM: multi_v7_defconfig: Replace DRM_RCAR_HDMI by generic bridge options

[Geert Uytterhoeven]

The manual bridge implementation was removed in favor of the generic
one, so now we need to enable standard bridge drivers like
DRM_DUMB_VGA_DAC and DRM_I2C_ADV7511.
Both were already enabled, but the (newer) ADV7511 audio part wasn't.

Fixes: 5c602531feb3db39 ("drm: rcar-du: Replace manual bridge implementation with DRM bridge")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
multi_v7_defconfig is in desperate need of a refresh.

To reduce conflicts, I went for the simple option of adding
CONFIG_DRM_I2C_ADV7511_AUDIO below CONFIG_DRM_I2C_ADV7511, instead of
moving CONFIG_DRM_I2C_ADV7511 and CONFIG_DRM_DUMB_VGA_DAC around.
---
 arch/arm/configs/multi_v7_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 7fa1746970ecc531..ea2075d8e185f7aa 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -584,6 +584,7 @@ CONFIG_VIDEO_ADV7180=m
 CONFIG_VIDEO_ML86V7667=m
 CONFIG_DRM=y
 CONFIG_DRM_I2C_ADV7511=m
+CONFIG_DRM_I2C_ADV7511_AUDIO=y
 # CONFIG_DRM_I2C_CH7006 is not set
 # CONFIG_DRM_I2C_SIL164 is not set
 CONFIG_DRM_DUMB_VGA_DAC=m
@@ -603,7 +604,6 @@ CONFIG_ROCKCHIP_DW_MIPI_DSI=y
 CONFIG_ROCKCHIP_INNO_HDMI=y
 CONFIG_DRM_ATMEL_HLCDC=m
 CONFIG_DRM_RCAR_DU=m
-CONFIG_DRM_RCAR_HDMI=y
 CONFIG_DRM_RCAR_LVDS=y
 CONFIG_DRM_SUN4I=m
 CONFIG_DRM_TEGRA=y
-- 
2.7.4

[PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Geert Uytterhoeven]

DMA for (H)SCIF(A|B) serial ports on Renesas R-Car Gen2 and RZ/G1 SoCs
is considered stable, hence enable it by default.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/configs/multi_v7_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index ea2075d8e185f7aa..072a455008df9751 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -330,6 +330,7 @@ CONFIG_SERIAL_IMX_CONSOLE=y
 CONFIG_SERIAL_SH_SCI=y
 CONFIG_SERIAL_SH_SCI_NR_UARTS=20
 CONFIG_SERIAL_SH_SCI_CONSOLE=y
+CONFIG_SERIAL_SH_SCI_DMA=y
 CONFIG_SERIAL_MSM=y
 CONFIG_SERIAL_MSM_CONSOLE=y
 CONFIG_SERIAL_VT8500=y
-- 
2.7.4

[PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Geert Uytterhoeven]

DMA for (H)SCIF(A|B) serial ports on Renesas R-Car Gen2 and RZ/G1 SoCs
is considered stable, hence enable it by default.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/configs/multi_v7_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index ea2075d8e185f7aa..072a455008df9751 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -330,6 +330,7 @@ CONFIG_SERIAL_IMX_CONSOLE=y
 CONFIG_SERIAL_SH_SCI=y
 CONFIG_SERIAL_SH_SCI_NR_UARTS=20
 CONFIG_SERIAL_SH_SCI_CONSOLE=y
+CONFIG_SERIAL_SH_SCI_DMA=y
 CONFIG_SERIAL_MSM=y
 CONFIG_SERIAL_MSM_CONSOLE=y
 CONFIG_SERIAL_VT8500=y
-- 
2.7.4

Re: [PATCH 8/9] ARM: multi_v7_defconfig: Replace DRM_RCAR_HDMI by generic bridge options

[Laurent Pinchart]

Hi Geert,

Thank you for the patch.

On Monday 10 Jul 2017 15:28:21 Geert Uytterhoeven wrote:
> The manual bridge implementation was removed in favor of the generic
> one, so now we need to enable standard bridge drivers like
> DRM_DUMB_VGA_DAC and DRM_I2C_ADV7511.
> Both were already enabled, but the (newer) ADV7511 audio part wasn't.
> 
> Fixes: 5c602531feb3db39 ("drm: rcar-du: Replace manual bridge implementation
> with DRM bridge")

I wonder if this patch really needs a Fixes tag. All it does is removing a now 
deleted kernel option, and adding a new unrelated one. The former is related 
to 5c602531feb3db39, but I'm not sure it should be considered as a bug.

The content of this patch looks good to me though.

> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
> multi_v7_defconfig is in desperate need of a refresh.
> 
> To reduce conflicts, I went for the simple option of adding
> CONFIG_DRM_I2C_ADV7511_AUDIO below CONFIG_DRM_I2C_ADV7511, instead of
> moving CONFIG_DRM_I2C_ADV7511 and CONFIG_DRM_DUMB_VGA_DAC around.
> ---
>  arch/arm/configs/multi_v7_defconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/configs/multi_v7_defconfig
> b/arch/arm/configs/multi_v7_defconfig index
> 7fa1746970ecc531..ea2075d8e185f7aa 100644
> --- a/arch/arm/configs/multi_v7_defconfig
> +++ b/arch/arm/configs/multi_v7_defconfig
> @@ -584,6 +584,7 @@ CONFIG_VIDEO_ADV7180=m
>  CONFIG_VIDEO_ML86V7667=m
>  CONFIG_DRM=y
>  CONFIG_DRM_I2C_ADV7511=m
> +CONFIG_DRM_I2C_ADV7511_AUDIO=y
>  # CONFIG_DRM_I2C_CH7006 is not set
>  # CONFIG_DRM_I2C_SIL164 is not set
>  CONFIG_DRM_DUMB_VGA_DAC=m
> @@ -603,7 +604,6 @@ CONFIG_ROCKCHIP_DW_MIPI_DSI=y
>  CONFIG_ROCKCHIP_INNO_HDMI=y
>  CONFIG_DRM_ATMEL_HLCDC=m
>  CONFIG_DRM_RCAR_DU=m
> -CONFIG_DRM_RCAR_HDMI=y
>  CONFIG_DRM_RCAR_LVDS=y
>  CONFIG_DRM_SUN4I=m
>  CONFIG_DRM_TEGRA=y

-- 
Regards,

Laurent Pinchart

[PATCH 8/9] ARM: multi_v7_defconfig: Replace DRM_RCAR_HDMI by generic bridge options

[Laurent Pinchart]

Hi Geert,

Thank you for the patch.

On Monday 10 Jul 2017 15:28:21 Geert Uytterhoeven wrote:
> The manual bridge implementation was removed in favor of the generic
> one, so now we need to enable standard bridge drivers like
> DRM_DUMB_VGA_DAC and DRM_I2C_ADV7511.
> Both were already enabled, but the (newer) ADV7511 audio part wasn't.
> 
> Fixes: 5c602531feb3db39 ("drm: rcar-du: Replace manual bridge implementation
> with DRM bridge")

I wonder if this patch really needs a Fixes tag. All it does is removing a now 
deleted kernel option, and adding a new unrelated one. The former is related 
to 5c602531feb3db39, but I'm not sure it should be considered as a bug.

The content of this patch looks good to me though.

> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
> multi_v7_defconfig is in desperate need of a refresh.
> 
> To reduce conflicts, I went for the simple option of adding
> CONFIG_DRM_I2C_ADV7511_AUDIO below CONFIG_DRM_I2C_ADV7511, instead of
> moving CONFIG_DRM_I2C_ADV7511 and CONFIG_DRM_DUMB_VGA_DAC around.
> ---
>  arch/arm/configs/multi_v7_defconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/configs/multi_v7_defconfig
> b/arch/arm/configs/multi_v7_defconfig index
> 7fa1746970ecc531..ea2075d8e185f7aa 100644
> --- a/arch/arm/configs/multi_v7_defconfig
> +++ b/arch/arm/configs/multi_v7_defconfig
> @@ -584,6 +584,7 @@ CONFIG_VIDEO_ADV7180=m
>  CONFIG_VIDEO_ML86V7667=m
>  CONFIG_DRM=y
>  CONFIG_DRM_I2C_ADV7511=m
> +CONFIG_DRM_I2C_ADV7511_AUDIO=y
>  # CONFIG_DRM_I2C_CH7006 is not set
>  # CONFIG_DRM_I2C_SIL164 is not set
>  CONFIG_DRM_DUMB_VGA_DAC=m
> @@ -603,7 +604,6 @@ CONFIG_ROCKCHIP_DW_MIPI_DSI=y
>  CONFIG_ROCKCHIP_INNO_HDMI=y
>  CONFIG_DRM_ATMEL_HLCDC=m
>  CONFIG_DRM_RCAR_DU=m
> -CONFIG_DRM_RCAR_HDMI=y
>  CONFIG_DRM_RCAR_LVDS=y
>  CONFIG_DRM_SUN4I=m
>  CONFIG_DRM_TEGRA=y

-- 
Regards,

Laurent Pinchart

Re: [PATCH 8/9] ARM: multi_v7_defconfig: Replace DRM_RCAR_HDMI by generic bridge options

[Geert Uytterhoeven]

Hi Laurent,

On Mon, Jul 10, 2017 at 3:41 PM, Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
> On Monday 10 Jul 2017 15:28:21 Geert Uytterhoeven wrote:
>> The manual bridge implementation was removed in favor of the generic
>> one, so now we need to enable standard bridge drivers like
>> DRM_DUMB_VGA_DAC and DRM_I2C_ADV7511.
>> Both were already enabled, but the (newer) ADV7511 audio part wasn't.
>>
>> Fixes: 5c602531feb3db39 ("drm: rcar-du: Replace manual bridge implementation
>> with DRM bridge")
>
> I wonder if this patch really needs a Fixes tag. All it does is removing a now
> deleted kernel option, and adding a new unrelated one. The former is related
> to 5c602531feb3db39, but I'm not sure it should be considered as a bug.

I added a Fixes tag because it aids backporting: if 5c602531feb3db39
is backported, the defconfig update should be backported, too.

> The content of this patch looks good to me though.

Thanks!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 8/9] ARM: multi_v7_defconfig: Replace DRM_RCAR_HDMI by generic bridge options

[Geert Uytterhoeven]

Hi Laurent,

On Mon, Jul 10, 2017 at 3:41 PM, Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
> On Monday 10 Jul 2017 15:28:21 Geert Uytterhoeven wrote:
>> The manual bridge implementation was removed in favor of the generic
>> one, so now we need to enable standard bridge drivers like
>> DRM_DUMB_VGA_DAC and DRM_I2C_ADV7511.
>> Both were already enabled, but the (newer) ADV7511 audio part wasn't.
>>
>> Fixes: 5c602531feb3db39 ("drm: rcar-du: Replace manual bridge implementation
>> with DRM bridge")
>
> I wonder if this patch really needs a Fixes tag. All it does is removing a now
> deleted kernel option, and adding a new unrelated one. The former is related
> to 5c602531feb3db39, but I'm not sure it should be considered as a bug.

I added a Fixes tag because it aids backporting: if 5c602531feb3db39
is backported, the defconfig update should be backported, too.

> The content of this patch looks good to me though.

Thanks!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Magnus Damm]

Hi Geert,

On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
<geert+renesas@glider.be> wrote:
> DMA for (H)SCIF(A|B) serial ports on Renesas R-Car Gen2 and RZ/G1 SoCs
> is considered stable, hence enable it by default.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
>  arch/arm/configs/multi_v7_defconfig | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
> index ea2075d8e185f7aa..072a455008df9751 100644
> --- a/arch/arm/configs/multi_v7_defconfig
> +++ b/arch/arm/configs/multi_v7_defconfig
> @@ -330,6 +330,7 @@ CONFIG_SERIAL_IMX_CONSOLE=y
>  CONFIG_SERIAL_SH_SCI=y
>  CONFIG_SERIAL_SH_SCI_NR_UARTS=20
>  CONFIG_SERIAL_SH_SCI_CONSOLE=y
> +CONFIG_SERIAL_SH_SCI_DMA=y
>  CONFIG_SERIAL_MSM=y
>  CONFIG_SERIAL_MSM_CONSOLE=y
>  CONFIG_SERIAL_VT8500=y

Thanks, FWIW I'm very happy to see DMA enabled for the SCIF driver in mainline.

Since enabling DMA Engine still keeps PIO support around I wonder why
we need this Kconfig at all - other drivers seem to get by without
this kind of thing?
So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
completely and reducing the number of special per-driver Kconfig
entries.

Cheers,

/ magnus

[PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Magnus Damm]

Hi Geert,

On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
<geert+renesas@glider.be> wrote:
> DMA for (H)SCIF(A|B) serial ports on Renesas R-Car Gen2 and RZ/G1 SoCs
> is considered stable, hence enable it by default.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
>  arch/arm/configs/multi_v7_defconfig | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
> index ea2075d8e185f7aa..072a455008df9751 100644
> --- a/arch/arm/configs/multi_v7_defconfig
> +++ b/arch/arm/configs/multi_v7_defconfig
> @@ -330,6 +330,7 @@ CONFIG_SERIAL_IMX_CONSOLE=y
>  CONFIG_SERIAL_SH_SCI=y
>  CONFIG_SERIAL_SH_SCI_NR_UARTS=20
>  CONFIG_SERIAL_SH_SCI_CONSOLE=y
> +CONFIG_SERIAL_SH_SCI_DMA=y
>  CONFIG_SERIAL_MSM=y
>  CONFIG_SERIAL_MSM_CONSOLE=y
>  CONFIG_SERIAL_VT8500=y

Thanks, FWIW I'm very happy to see DMA enabled for the SCIF driver in mainline.

Since enabling DMA Engine still keeps PIO support around I wonder why
we need this Kconfig at all - other drivers seem to get by without
this kind of thing?
So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
completely and reducing the number of special per-driver Kconfig
entries.

Cheers,

/ magnus

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Geert Uytterhoeven]

Hi Magnus,

On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
> <geert+renesas@glider.be> wrote:
>> DMA for (H)SCIF(A|B) serial ports on Renesas R-Car Gen2 and RZ/G1 SoCs
>> is considered stable, hence enable it by default.
>>
>> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
>> ---
>>  arch/arm/configs/multi_v7_defconfig | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
>> index ea2075d8e185f7aa..072a455008df9751 100644
>> --- a/arch/arm/configs/multi_v7_defconfig
>> +++ b/arch/arm/configs/multi_v7_defconfig
>> @@ -330,6 +330,7 @@ CONFIG_SERIAL_IMX_CONSOLE=y
>>  CONFIG_SERIAL_SH_SCI=y
>>  CONFIG_SERIAL_SH_SCI_NR_UARTS 
>>  CONFIG_SERIAL_SH_SCI_CONSOLE=y
>> +CONFIG_SERIAL_SH_SCI_DMA=y
>>  CONFIG_SERIAL_MSM=y
>>  CONFIG_SERIAL_MSM_CONSOLE=y
>>  CONFIG_SERIAL_VT8500=y
>
> Thanks, FWIW I'm very happy to see DMA enabled for the SCIF driver in mainline.
>
> Since enabling DMA Engine still keeps PIO support around I wonder why
> we need this Kconfig at all - other drivers seem to get by without
> this kind of thing?
> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
> completely and reducing the number of special per-driver Kconfig
> entries.

In general, I would agree, and remove the option at the blimp of an eye.
However, this driver is shared with H8/300 and SuperH.  While both could use
DMA (but it's not supported by Linux yet), I don't know if they are willing to
live with the increased static and dynamic memory footprint of SH_SCI DMA
support.

Whether we want to hide the option (and default to y if ARCH_RENESAS, i.e.
ARM) is another question.  Note that that wouldn't reduce code maintainability,
as the #ifdefs would be kept, and it would prevent building and testing
with/without DMA on ARM.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Geert Uytterhoeven]

Hi Magnus,

On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
> <geert+renesas@glider.be> wrote:
>> DMA for (H)SCIF(A|B) serial ports on Renesas R-Car Gen2 and RZ/G1 SoCs
>> is considered stable, hence enable it by default.
>>
>> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
>> ---
>>  arch/arm/configs/multi_v7_defconfig | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
>> index ea2075d8e185f7aa..072a455008df9751 100644
>> --- a/arch/arm/configs/multi_v7_defconfig
>> +++ b/arch/arm/configs/multi_v7_defconfig
>> @@ -330,6 +330,7 @@ CONFIG_SERIAL_IMX_CONSOLE=y
>>  CONFIG_SERIAL_SH_SCI=y
>>  CONFIG_SERIAL_SH_SCI_NR_UARTS=20
>>  CONFIG_SERIAL_SH_SCI_CONSOLE=y
>> +CONFIG_SERIAL_SH_SCI_DMA=y
>>  CONFIG_SERIAL_MSM=y
>>  CONFIG_SERIAL_MSM_CONSOLE=y
>>  CONFIG_SERIAL_VT8500=y
>
> Thanks, FWIW I'm very happy to see DMA enabled for the SCIF driver in mainline.
>
> Since enabling DMA Engine still keeps PIO support around I wonder why
> we need this Kconfig at all - other drivers seem to get by without
> this kind of thing?
> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
> completely and reducing the number of special per-driver Kconfig
> entries.

In general, I would agree, and remove the option at the blimp of an eye.
However, this driver is shared with H8/300 and SuperH.  While both could use
DMA (but it's not supported by Linux yet), I don't know if they are willing to
live with the increased static and dynamic memory footprint of SH_SCI DMA
support.

Whether we want to hide the option (and default to y if ARCH_RENESAS, i.e.
ARM) is another question.  Note that that wouldn't reduce code maintainability,
as the #ifdefs would be kept, and it would prevent building and testing
with/without DMA on ARM.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Geert Uytterhoeven]

Hi Magnus,

On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
> <geert+renesas@glider.be> wrote:
>> DMA for (H)SCIF(A|B) serial ports on Renesas R-Car Gen2 and RZ/G1 SoCs
>> is considered stable, hence enable it by default.
>>
>> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
>> ---
>>  arch/arm/configs/multi_v7_defconfig | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
>> index ea2075d8e185f7aa..072a455008df9751 100644
>> --- a/arch/arm/configs/multi_v7_defconfig
>> +++ b/arch/arm/configs/multi_v7_defconfig
>> @@ -330,6 +330,7 @@ CONFIG_SERIAL_IMX_CONSOLE=y
>>  CONFIG_SERIAL_SH_SCI=y
>>  CONFIG_SERIAL_SH_SCI_NR_UARTS=20
>>  CONFIG_SERIAL_SH_SCI_CONSOLE=y
>> +CONFIG_SERIAL_SH_SCI_DMA=y
>>  CONFIG_SERIAL_MSM=y
>>  CONFIG_SERIAL_MSM_CONSOLE=y
>>  CONFIG_SERIAL_VT8500=y
>
> Thanks, FWIW I'm very happy to see DMA enabled for the SCIF driver in mainline.
>
> Since enabling DMA Engine still keeps PIO support around I wonder why
> we need this Kconfig at all - other drivers seem to get by without
> this kind of thing?
> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
> completely and reducing the number of special per-driver Kconfig
> entries.

In general, I would agree, and remove the option at the blimp of an eye.
However, this driver is shared with H8/300 and SuperH.  While both could use
DMA (but it's not supported by Linux yet), I don't know if they are willing to
live with the increased static and dynamic memory footprint of SH_SCI DMA
support.

Whether we want to hide the option (and default to y if ARCH_RENESAS, i.e.
ARM) is another question.  Note that that wouldn't reduce code maintainability,
as the #ifdefs would be kept, and it would prevent building and testing
with/without DMA on ARM.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Arnd Bergmann]

On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:

> Whether we want to hide the option (and default to y if ARCH_RENESAS, i.e.
> ARM) is another question.  Note that that wouldn't reduce code maintainability,
> as the #ifdefs would be kept, and it would prevent building and testing
> with/without DMA on ARM.

arch/sh/configs/sdk7786_defconfig enables it, too, so it should at least be
a user-selectable option on SuperH if you do that.

     Arnd

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Arnd Bergmann]

On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:

> Whether we want to hide the option (and default to y if ARCH_RENESAS, i.e.
> ARM) is another question.  Note that that wouldn't reduce code maintainability,
> as the #ifdefs would be kept, and it would prevent building and testing
> with/without DMA on ARM.

arch/sh/configs/sdk7786_defconfig enables it, too, so it should at least be
a user-selectable option on SuperH if you do that.

     Arnd

[PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Arnd Bergmann]

On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:

> Whether we want to hide the option (and default to y if ARCH_RENESAS, i.e.
> ARM) is another question.  Note that that wouldn't reduce code maintainability,
> as the #ifdefs would be kept, and it would prevent building and testing
> with/without DMA on ARM.

arch/sh/configs/sdk7786_defconfig enables it, too, so it should at least be
a user-selectable option on SuperH if you do that.

     Arnd

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Arnd Bergmann]

On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:
> Hi Magnus,
>
> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven

>> Since enabling DMA Engine still keeps PIO support around I wonder why
>> we need this Kconfig at all - other drivers seem to get by without
>> this kind of thing?
>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>> completely and reducing the number of special per-driver Kconfig
>> entries.
>
> In general, I would agree, and remove the option at the blimp of an eye.
> However, this driver is shared with H8/300 and SuperH.  While both could use
> DMA (but it's not supported by Linux yet), I don't know if they are willing to
> live with the increased static and dynamic memory footprint of SH_SCI DMA
> support.

One more thing: enabling the DMA support in the console driver generally
means you cannot use printk in the DMA driver anywhere that may be called
during printk(). Not sure if that is a concern here.

      Arnd

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Arnd Bergmann]

On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:
> Hi Magnus,
>
> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven

>> Since enabling DMA Engine still keeps PIO support around I wonder why
>> we need this Kconfig at all - other drivers seem to get by without
>> this kind of thing?
>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>> completely and reducing the number of special per-driver Kconfig
>> entries.
>
> In general, I would agree, and remove the option at the blimp of an eye.
> However, this driver is shared with H8/300 and SuperH.  While both could use
> DMA (but it's not supported by Linux yet), I don't know if they are willing to
> live with the increased static and dynamic memory footprint of SH_SCI DMA
> support.

One more thing: enabling the DMA support in the console driver generally
means you cannot use printk in the DMA driver anywhere that may be called
during printk(). Not sure if that is a concern here.

      Arnd

[PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Arnd Bergmann]

On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:
> Hi Magnus,
>
> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven

>> Since enabling DMA Engine still keeps PIO support around I wonder why
>> we need this Kconfig at all - other drivers seem to get by without
>> this kind of thing?
>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>> completely and reducing the number of special per-driver Kconfig
>> entries.
>
> In general, I would agree, and remove the option at the blimp of an eye.
> However, this driver is shared with H8/300 and SuperH.  While both could use
> DMA (but it's not supported by Linux yet), I don't know if they are willing to
> live with the increased static and dynamic memory footprint of SH_SCI DMA
> support.

One more thing: enabling the DMA support in the console driver generally
means you cannot use printk in the DMA driver anywhere that may be called
during printk(). Not sure if that is a concern here.

      Arnd

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Geert Uytterhoeven]

Hi Arnd,

On Tue, Jul 11, 2017 at 10:39 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
> <geert@linux-m68k.org> wrote:
>
>> Whether we want to hide the option (and default to y if ARCH_RENESAS, i.e.
>> ARM) is another question.  Note that that wouldn't reduce code maintainability,
>> as the #ifdefs would be kept, and it would prevent building and testing
>> with/without DMA on ARM.
>
> arch/sh/configs/sdk7786_defconfig enables it, too, so it should at least be
> a user-selectable option on SuperH if you do that.

But that can't enable DMA, as (1) the non-DT DMA configuration was removed
due to (2) being unused.

Cfr. commit 219fb0c1436e4893 ("serial: sh-sci: Remove the platform data dma
slave rx/tx channel IDs").

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Geert Uytterhoeven]

Hi Arnd,

On Tue, Jul 11, 2017 at 10:39 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
> <geert@linux-m68k.org> wrote:
>
>> Whether we want to hide the option (and default to y if ARCH_RENESAS, i.e.
>> ARM) is another question.  Note that that wouldn't reduce code maintainability,
>> as the #ifdefs would be kept, and it would prevent building and testing
>> with/without DMA on ARM.
>
> arch/sh/configs/sdk7786_defconfig enables it, too, so it should at least be
> a user-selectable option on SuperH if you do that.

But that can't enable DMA, as (1) the non-DT DMA configuration was removed
due to (2) being unused.

Cfr. commit 219fb0c1436e4893 ("serial: sh-sci: Remove the platform data dma
slave rx/tx channel IDs").

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Geert Uytterhoeven]

Hi Arnd,

On Tue, Jul 11, 2017 at 10:39 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
> <geert@linux-m68k.org> wrote:
>
>> Whether we want to hide the option (and default to y if ARCH_RENESAS, i.e.
>> ARM) is another question.  Note that that wouldn't reduce code maintainability,
>> as the #ifdefs would be kept, and it would prevent building and testing
>> with/without DMA on ARM.
>
> arch/sh/configs/sdk7786_defconfig enables it, too, so it should at least be
> a user-selectable option on SuperH if you do that.

But that can't enable DMA, as (1) the non-DT DMA configuration was removed
due to (2) being unused.

Cfr. commit 219fb0c1436e4893 ("serial: sh-sci: Remove the platform data dma
slave rx/tx channel IDs").

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Geert Uytterhoeven]

Hi Arnd,

On Tue, Jul 11, 2017 at 10:42 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
> <geert@linux-m68k.org> wrote:
>> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
>>> Since enabling DMA Engine still keeps PIO support around I wonder why
>>> we need this Kconfig at all - other drivers seem to get by without
>>> this kind of thing?
>>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>>> completely and reducing the number of special per-driver Kconfig
>>> entries.
>>
>> In general, I would agree, and remove the option at the blimp of an eye.
>> However, this driver is shared with H8/300 and SuperH.  While both could use
>> DMA (but it's not supported by Linux yet), I don't know if they are willing to
>> live with the increased static and dynamic memory footprint of SH_SCI DMA
>> support.
>
> One more thing: enabling the DMA support in the console driver generally
> means you cannot use printk in the DMA driver anywhere that may be called
> during printk(). Not sure if that is a concern here.

Not anymore, as all of these prints should have been removed/disabled already.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Geert Uytterhoeven]

Hi Arnd,

On Tue, Jul 11, 2017 at 10:42 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
> <geert@linux-m68k.org> wrote:
>> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
>>> Since enabling DMA Engine still keeps PIO support around I wonder why
>>> we need this Kconfig at all - other drivers seem to get by without
>>> this kind of thing?
>>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>>> completely and reducing the number of special per-driver Kconfig
>>> entries.
>>
>> In general, I would agree, and remove the option at the blimp of an eye.
>> However, this driver is shared with H8/300 and SuperH.  While both could use
>> DMA (but it's not supported by Linux yet), I don't know if they are willing to
>> live with the increased static and dynamic memory footprint of SH_SCI DMA
>> support.
>
> One more thing: enabling the DMA support in the console driver generally
> means you cannot use printk in the DMA driver anywhere that may be called
> during printk(). Not sure if that is a concern here.

Not anymore, as all of these prints should have been removed/disabled already.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Geert Uytterhoeven]

Hi Arnd,

On Tue, Jul 11, 2017 at 10:42 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
> <geert@linux-m68k.org> wrote:
>> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
>>> Since enabling DMA Engine still keeps PIO support around I wonder why
>>> we need this Kconfig at all - other drivers seem to get by without
>>> this kind of thing?
>>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>>> completely and reducing the number of special per-driver Kconfig
>>> entries.
>>
>> In general, I would agree, and remove the option at the blimp of an eye.
>> However, this driver is shared with H8/300 and SuperH.  While both could use
>> DMA (but it's not supported by Linux yet), I don't know if they are willing to
>> live with the increased static and dynamic memory footprint of SH_SCI DMA
>> support.
>
> One more thing: enabling the DMA support in the console driver generally
> means you cannot use printk in the DMA driver anywhere that may be called
> during printk(). Not sure if that is a concern here.

Not anymore, as all of these prints should have been removed/disabled already.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 0/9] ARM: renesas: shmobile and multi_v7 defconfig updates

[Simon Horman]

On Mon, Jul 10, 2017 at 03:28:13PM +0200, Geert Uytterhoeven wrote:
> 	Hi Arnd, Kevin, Magnus, Olof, Simon,
> 
> This patch series updates shmobile_defconfig and multi_v7_defconfig to
> (re-)enable some features:
>   - Re-enable R-Car PCIe (shmobile_defconfig),
>   - Re-enable R-Car XHCI (shmobile_defconfig),
>   - Re-enable R-Car sound (both),
>   - Update DRM bridge (both),
>   - Enable serial port DMA (both).
> 
> There also a patch included to refresh shmobile_defconfig.
> To avoid conflicts, I didn't refresh multi_v7_defconfig (although it could
> definitely use a refresh), and only made "simple" changes to it.

Thanks, all applied.

Personally I would be in favour of co-ordinating a refresh of
multi_v7_defconfig.

> 
> Thanks!
> 
> Geert Uytterhoeven (9):
>   ARM: shmobile: defconfig: Enable missing PCIE_RCAR dependency
>   ARM: shmobile: defconfig: Replace USB_XHCI_RCAR by USB_XHCI_PLATFORM
>   ARM: shmobile: defconfig: Replace SND_SOC_RSRC_CARD by
>     SND_SIMPLE_SCU_CARD
>   ARM: shmobile: defconfig: Replace DRM_RCAR_HDMI by generic bridge
>     options
>   ARM: shmobile: defconfig: Enable DMA for serial ports
>   ARM: shmobile: defconfig: Refresh
>   ARM: multi_v7_defconfig: Replace SND_SOC_RSRC_CARD by
>     SND_SIMPLE_SCU_CARD
>   ARM: multi_v7_defconfig: Replace DRM_RCAR_HDMI by generic bridge
>     options
>   ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports
> 
>  arch/arm/configs/multi_v7_defconfig |  5 +++--
>  arch/arm/configs/shmobile_defconfig | 16 +++++++++-------
>  2 files changed, 12 insertions(+), 9 deletions(-)
> 
> -- 
> 2.7.4
> 
> Gr{oetje,eeting}s,
> 
> 						Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> 							    -- Linus Torvalds
> 

[PATCH 0/9] ARM: renesas: shmobile and multi_v7 defconfig updates

[Simon Horman]

On Mon, Jul 10, 2017 at 03:28:13PM +0200, Geert Uytterhoeven wrote:
> 	Hi Arnd, Kevin, Magnus, Olof, Simon,
> 
> This patch series updates shmobile_defconfig and multi_v7_defconfig to
> (re-)enable some features:
>   - Re-enable R-Car PCIe (shmobile_defconfig),
>   - Re-enable R-Car XHCI (shmobile_defconfig),
>   - Re-enable R-Car sound (both),
>   - Update DRM bridge (both),
>   - Enable serial port DMA (both).
> 
> There also a patch included to refresh shmobile_defconfig.
> To avoid conflicts, I didn't refresh multi_v7_defconfig (although it could
> definitely use a refresh), and only made "simple" changes to it.

Thanks, all applied.

Personally I would be in favour of co-ordinating a refresh of
multi_v7_defconfig.

> 
> Thanks!
> 
> Geert Uytterhoeven (9):
>   ARM: shmobile: defconfig: Enable missing PCIE_RCAR dependency
>   ARM: shmobile: defconfig: Replace USB_XHCI_RCAR by USB_XHCI_PLATFORM
>   ARM: shmobile: defconfig: Replace SND_SOC_RSRC_CARD by
>     SND_SIMPLE_SCU_CARD
>   ARM: shmobile: defconfig: Replace DRM_RCAR_HDMI by generic bridge
>     options
>   ARM: shmobile: defconfig: Enable DMA for serial ports
>   ARM: shmobile: defconfig: Refresh
>   ARM: multi_v7_defconfig: Replace SND_SOC_RSRC_CARD by
>     SND_SIMPLE_SCU_CARD
>   ARM: multi_v7_defconfig: Replace DRM_RCAR_HDMI by generic bridge
>     options
>   ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports
> 
>  arch/arm/configs/multi_v7_defconfig |  5 +++--
>  arch/arm/configs/shmobile_defconfig | 16 +++++++++-------
>  2 files changed, 12 insertions(+), 9 deletions(-)
> 
> -- 
> 2.7.4
> 
> Gr{oetje,eeting}s,
> 
> 						Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> 							    -- Linus Torvalds
> 

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Rob Landley]

On 07/11/2017 03:59 AM, Geert Uytterhoeven wrote:
> Hi Arnd,
> 
> On Tue, Jul 11, 2017 at 10:42 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
>> <geert@linux-m68k.org> wrote:
>>> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>>>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
>>>> Since enabling DMA Engine still keeps PIO support around I wonder why
>>>> we need this Kconfig at all - other drivers seem to get by without
>>>> this kind of thing?
>>>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>>>> completely and reducing the number of special per-driver Kconfig
>>>> entries.
>>>
>>> In general, I would agree, and remove the option at the blimp of an eye.
>>> However, this driver is shared with H8/300 and SuperH.  While both could use
>>> DMA (but it's not supported by Linux yet), I don't know if they are willing to
>>> live with the increased static and dynamic memory footprint of SH_SCI DMA
>>> support.
>>
>> One more thing: enabling the DMA support in the console driver generally
>> means you cannot use printk in the DMA driver anywhere that may be called
>> during printk(). Not sure if that is a concern here.
> 
> Not anymore, as all of these prints should have been removed/disabled already.

Last I checked qemu-system-sh4 still doesn't work with current linux
serial driver unless you do:

--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2193,7 +2193,7 @@ static void sci_reset(struct uart_port *port)
 			setup_timer(&s->rx_fifo_timer, rx_fifo_timer_fn,
 				    (unsigned long)s);
 		} else {
-			if (port->type = PORT_SCIFA ||
+			if (1 || port->type = PORT_SCIFA ||
 			    port->type = PORT_SCIFB)
 				scif_set_rtrg(port, 1);
 			else

Does this DMA stuff make that situation worse?

Rob

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Rob Landley]

On 07/11/2017 03:59 AM, Geert Uytterhoeven wrote:
> Hi Arnd,
> 
> On Tue, Jul 11, 2017 at 10:42 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
>> <geert@linux-m68k.org> wrote:
>>> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>>>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
>>>> Since enabling DMA Engine still keeps PIO support around I wonder why
>>>> we need this Kconfig at all - other drivers seem to get by without
>>>> this kind of thing?
>>>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>>>> completely and reducing the number of special per-driver Kconfig
>>>> entries.
>>>
>>> In general, I would agree, and remove the option at the blimp of an eye.
>>> However, this driver is shared with H8/300 and SuperH.  While both could use
>>> DMA (but it's not supported by Linux yet), I don't know if they are willing to
>>> live with the increased static and dynamic memory footprint of SH_SCI DMA
>>> support.
>>
>> One more thing: enabling the DMA support in the console driver generally
>> means you cannot use printk in the DMA driver anywhere that may be called
>> during printk(). Not sure if that is a concern here.
> 
> Not anymore, as all of these prints should have been removed/disabled already.

Last I checked qemu-system-sh4 still doesn't work with current linux
serial driver unless you do:

--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2193,7 +2193,7 @@ static void sci_reset(struct uart_port *port)
 			setup_timer(&s->rx_fifo_timer, rx_fifo_timer_fn,
 				    (unsigned long)s);
 		} else {
-			if (port->type == PORT_SCIFA ||
+			if (1 || port->type == PORT_SCIFA ||
 			    port->type == PORT_SCIFB)
 				scif_set_rtrg(port, 1);
 			else

Does this DMA stuff make that situation worse?

Rob

[PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Rob Landley]

On 07/11/2017 03:59 AM, Geert Uytterhoeven wrote:
> Hi Arnd,
> 
> On Tue, Jul 11, 2017 at 10:42 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
>> <geert@linux-m68k.org> wrote:
>>> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>>>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
>>>> Since enabling DMA Engine still keeps PIO support around I wonder why
>>>> we need this Kconfig at all - other drivers seem to get by without
>>>> this kind of thing?
>>>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>>>> completely and reducing the number of special per-driver Kconfig
>>>> entries.
>>>
>>> In general, I would agree, and remove the option at the blimp of an eye.
>>> However, this driver is shared with H8/300 and SuperH.  While both could use
>>> DMA (but it's not supported by Linux yet), I don't know if they are willing to
>>> live with the increased static and dynamic memory footprint of SH_SCI DMA
>>> support.
>>
>> One more thing: enabling the DMA support in the console driver generally
>> means you cannot use printk in the DMA driver anywhere that may be called
>> during printk(). Not sure if that is a concern here.
> 
> Not anymore, as all of these prints should have been removed/disabled already.

Last I checked qemu-system-sh4 still doesn't work with current linux
serial driver unless you do:

--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2193,7 +2193,7 @@ static void sci_reset(struct uart_port *port)
 			setup_timer(&s->rx_fifo_timer, rx_fifo_timer_fn,
 				    (unsigned long)s);
 		} else {
-			if (port->type == PORT_SCIFA ||
+			if (1 || port->type == PORT_SCIFA ||
 			    port->type == PORT_SCIFB)
 				scif_set_rtrg(port, 1);
 			else

Does this DMA stuff make that situation worse?

Rob

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Geert Uytterhoeven]

Hi Rob,

On Tue, Jul 11, 2017 at 12:37 PM, Rob Landley <rob@landley.net> wrote:
> On 07/11/2017 03:59 AM, Geert Uytterhoeven wrote:
>> On Tue, Jul 11, 2017 at 10:42 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>>> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
>>> <geert@linux-m68k.org> wrote:
>>>> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>>>>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
>>>>> Since enabling DMA Engine still keeps PIO support around I wonder why
>>>>> we need this Kconfig at all - other drivers seem to get by without
>>>>> this kind of thing?
>>>>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>>>>> completely and reducing the number of special per-driver Kconfig
>>>>> entries.
>>>>
>>>> In general, I would agree, and remove the option at the blimp of an eye.
>>>> However, this driver is shared with H8/300 and SuperH.  While both could use
>>>> DMA (but it's not supported by Linux yet), I don't know if they are willing to
>>>> live with the increased static and dynamic memory footprint of SH_SCI DMA
>>>> support.
>>>
>>> One more thing: enabling the DMA support in the console driver generally
>>> means you cannot use printk in the DMA driver anywhere that may be called
>>> during printk(). Not sure if that is a concern here.
>>
>> Not anymore, as all of these prints should have been removed/disabled already.
>
> Last I checked qemu-system-sh4 still doesn't work with current linux
> serial driver unless you do:
>
> --- a/drivers/tty/serial/sh-sci.c
> +++ b/drivers/tty/serial/sh-sci.c
> @@ -2193,7 +2193,7 @@ static void sci_reset(struct uart_port *port)
>                         setup_timer(&s->rx_fifo_timer, rx_fifo_timer_fn,
>                                     (unsigned long)s);
>                 } else {
> -                       if (port->type = PORT_SCIFA ||
> +                       if (1 || port->type = PORT_SCIFA ||
>                             port->type = PORT_SCIFB)
>                                 scif_set_rtrg(port, 1);
>                         else
>
> Does this DMA stuff make that situation worse?

No, SH-SCI DMA is not used on your platform.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Geert Uytterhoeven]

Hi Rob,

On Tue, Jul 11, 2017 at 12:37 PM, Rob Landley <rob@landley.net> wrote:
> On 07/11/2017 03:59 AM, Geert Uytterhoeven wrote:
>> On Tue, Jul 11, 2017 at 10:42 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>>> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
>>> <geert@linux-m68k.org> wrote:
>>>> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>>>>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
>>>>> Since enabling DMA Engine still keeps PIO support around I wonder why
>>>>> we need this Kconfig at all - other drivers seem to get by without
>>>>> this kind of thing?
>>>>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>>>>> completely and reducing the number of special per-driver Kconfig
>>>>> entries.
>>>>
>>>> In general, I would agree, and remove the option at the blimp of an eye.
>>>> However, this driver is shared with H8/300 and SuperH.  While both could use
>>>> DMA (but it's not supported by Linux yet), I don't know if they are willing to
>>>> live with the increased static and dynamic memory footprint of SH_SCI DMA
>>>> support.
>>>
>>> One more thing: enabling the DMA support in the console driver generally
>>> means you cannot use printk in the DMA driver anywhere that may be called
>>> during printk(). Not sure if that is a concern here.
>>
>> Not anymore, as all of these prints should have been removed/disabled already.
>
> Last I checked qemu-system-sh4 still doesn't work with current linux
> serial driver unless you do:
>
> --- a/drivers/tty/serial/sh-sci.c
> +++ b/drivers/tty/serial/sh-sci.c
> @@ -2193,7 +2193,7 @@ static void sci_reset(struct uart_port *port)
>                         setup_timer(&s->rx_fifo_timer, rx_fifo_timer_fn,
>                                     (unsigned long)s);
>                 } else {
> -                       if (port->type == PORT_SCIFA ||
> +                       if (1 || port->type == PORT_SCIFA ||
>                             port->type == PORT_SCIFB)
>                                 scif_set_rtrg(port, 1);
>                         else
>
> Does this DMA stuff make that situation worse?

No, SH-SCI DMA is not used on your platform.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Geert Uytterhoeven]

Hi Rob,

On Tue, Jul 11, 2017 at 12:37 PM, Rob Landley <rob@landley.net> wrote:
> On 07/11/2017 03:59 AM, Geert Uytterhoeven wrote:
>> On Tue, Jul 11, 2017 at 10:42 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>>> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
>>> <geert@linux-m68k.org> wrote:
>>>> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>>>>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
>>>>> Since enabling DMA Engine still keeps PIO support around I wonder why
>>>>> we need this Kconfig at all - other drivers seem to get by without
>>>>> this kind of thing?
>>>>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>>>>> completely and reducing the number of special per-driver Kconfig
>>>>> entries.
>>>>
>>>> In general, I would agree, and remove the option at the blimp of an eye.
>>>> However, this driver is shared with H8/300 and SuperH.  While both could use
>>>> DMA (but it's not supported by Linux yet), I don't know if they are willing to
>>>> live with the increased static and dynamic memory footprint of SH_SCI DMA
>>>> support.
>>>
>>> One more thing: enabling the DMA support in the console driver generally
>>> means you cannot use printk in the DMA driver anywhere that may be called
>>> during printk(). Not sure if that is a concern here.
>>
>> Not anymore, as all of these prints should have been removed/disabled already.
>
> Last I checked qemu-system-sh4 still doesn't work with current linux
> serial driver unless you do:
>
> --- a/drivers/tty/serial/sh-sci.c
> +++ b/drivers/tty/serial/sh-sci.c
> @@ -2193,7 +2193,7 @@ static void sci_reset(struct uart_port *port)
>                         setup_timer(&s->rx_fifo_timer, rx_fifo_timer_fn,
>                                     (unsigned long)s);
>                 } else {
> -                       if (port->type == PORT_SCIFA ||
> +                       if (1 || port->type == PORT_SCIFA ||
>                             port->type == PORT_SCIFB)
>                                 scif_set_rtrg(port, 1);
>                         else
>
> Does this DMA stuff make that situation worse?

No, SH-SCI DMA is not used on your platform.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Rob Landley]

On 07/11/2017 05:46 AM, Geert Uytterhoeven wrote:
> Hi Rob,
> 
> On Tue, Jul 11, 2017 at 12:37 PM, Rob Landley <rob@landley.net> wrote:
>> On 07/11/2017 03:59 AM, Geert Uytterhoeven wrote:
>>> On Tue, Jul 11, 2017 at 10:42 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>>>> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
>>>> <geert@linux-m68k.org> wrote:
>>>>> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>>>>>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
>>>>>> Since enabling DMA Engine still keeps PIO support around I wonder why
>>>>>> we need this Kconfig at all - other drivers seem to get by without
>>>>>> this kind of thing?
>>>>>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>>>>>> completely and reducing the number of special per-driver Kconfig
>>>>>> entries.
>>>>>
>>>>> In general, I would agree, and remove the option at the blimp of an eye.
>>>>> However, this driver is shared with H8/300 and SuperH.  While both could use
>>>>> DMA (but it's not supported by Linux yet), I don't know if they are willing to
>>>>> live with the increased static and dynamic memory footprint of SH_SCI DMA
>>>>> support.
>>>>
>>>> One more thing: enabling the DMA support in the console driver generally
>>>> means you cannot use printk in the DMA driver anywhere that may be called
>>>> during printk(). Not sure if that is a concern here.
>>>
>>> Not anymore, as all of these prints should have been removed/disabled already.
>>
>> Last I checked qemu-system-sh4 still doesn't work with current linux
>> serial driver unless you do:
>>
>> --- a/drivers/tty/serial/sh-sci.c
>> +++ b/drivers/tty/serial/sh-sci.c
>> @@ -2193,7 +2193,7 @@ static void sci_reset(struct uart_port *port)
>>                         setup_timer(&s->rx_fifo_timer, rx_fifo_timer_fn,
>>                                     (unsigned long)s);
>>                 } else {
>> -                       if (port->type = PORT_SCIFA ||
>> +                       if (1 || port->type = PORT_SCIFA ||
>>                             port->type = PORT_SCIFB)
>>                                 scif_set_rtrg(port, 1);
>>                         else
>>
>> Does this DMA stuff make that situation worse?
> 
> No, SH-SCI DMA is not used on your platform.
> 
> Gr{oetje,eeting}s,

This issue is still there. QEMU's serial output is borked with the last
year's worth of vanilla superh kernels.

Rob

Re: [PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Rob Landley]

On 07/11/2017 05:46 AM, Geert Uytterhoeven wrote:
> Hi Rob,
> 
> On Tue, Jul 11, 2017 at 12:37 PM, Rob Landley <rob@landley.net> wrote:
>> On 07/11/2017 03:59 AM, Geert Uytterhoeven wrote:
>>> On Tue, Jul 11, 2017 at 10:42 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>>>> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
>>>> <geert@linux-m68k.org> wrote:
>>>>> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>>>>>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
>>>>>> Since enabling DMA Engine still keeps PIO support around I wonder why
>>>>>> we need this Kconfig at all - other drivers seem to get by without
>>>>>> this kind of thing?
>>>>>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>>>>>> completely and reducing the number of special per-driver Kconfig
>>>>>> entries.
>>>>>
>>>>> In general, I would agree, and remove the option at the blimp of an eye.
>>>>> However, this driver is shared with H8/300 and SuperH.  While both could use
>>>>> DMA (but it's not supported by Linux yet), I don't know if they are willing to
>>>>> live with the increased static and dynamic memory footprint of SH_SCI DMA
>>>>> support.
>>>>
>>>> One more thing: enabling the DMA support in the console driver generally
>>>> means you cannot use printk in the DMA driver anywhere that may be called
>>>> during printk(). Not sure if that is a concern here.
>>>
>>> Not anymore, as all of these prints should have been removed/disabled already.
>>
>> Last I checked qemu-system-sh4 still doesn't work with current linux
>> serial driver unless you do:
>>
>> --- a/drivers/tty/serial/sh-sci.c
>> +++ b/drivers/tty/serial/sh-sci.c
>> @@ -2193,7 +2193,7 @@ static void sci_reset(struct uart_port *port)
>>                         setup_timer(&s->rx_fifo_timer, rx_fifo_timer_fn,
>>                                     (unsigned long)s);
>>                 } else {
>> -                       if (port->type == PORT_SCIFA ||
>> +                       if (1 || port->type == PORT_SCIFA ||
>>                             port->type == PORT_SCIFB)
>>                                 scif_set_rtrg(port, 1);
>>                         else
>>
>> Does this DMA stuff make that situation worse?
> 
> No, SH-SCI DMA is not used on your platform.
> 
> Gr{oetje,eeting}s,

This issue is still there. QEMU's serial output is borked with the last
year's worth of vanilla superh kernels.

Rob

[PATCH 9/9] ARM: multi_v7_defconfig: Enable DMA for Renesas serial ports

[Rob Landley]

On 07/11/2017 05:46 AM, Geert Uytterhoeven wrote:
> Hi Rob,
> 
> On Tue, Jul 11, 2017 at 12:37 PM, Rob Landley <rob@landley.net> wrote:
>> On 07/11/2017 03:59 AM, Geert Uytterhoeven wrote:
>>> On Tue, Jul 11, 2017 at 10:42 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>>>> On Tue, Jul 11, 2017 at 8:59 AM, Geert Uytterhoeven
>>>> <geert@linux-m68k.org> wrote:
>>>>> On Tue, Jul 11, 2017 at 5:38 AM, Magnus Damm <magnus.damm@gmail.com> wrote:
>>>>>> On Mon, Jul 10, 2017 at 10:28 PM, Geert Uytterhoeven
>>>>>> Since enabling DMA Engine still keeps PIO support around I wonder why
>>>>>> we need this Kconfig at all - other drivers seem to get by without
>>>>>> this kind of thing?
>>>>>> So in my opinion it would also be nice to get rid of SERIAL_SH_SCI_DMA
>>>>>> completely and reducing the number of special per-driver Kconfig
>>>>>> entries.
>>>>>
>>>>> In general, I would agree, and remove the option at the blimp of an eye.
>>>>> However, this driver is shared with H8/300 and SuperH.  While both could use
>>>>> DMA (but it's not supported by Linux yet), I don't know if they are willing to
>>>>> live with the increased static and dynamic memory footprint of SH_SCI DMA
>>>>> support.
>>>>
>>>> One more thing: enabling the DMA support in the console driver generally
>>>> means you cannot use printk in the DMA driver anywhere that may be called
>>>> during printk(). Not sure if that is a concern here.
>>>
>>> Not anymore, as all of these prints should have been removed/disabled already.
>>
>> Last I checked qemu-system-sh4 still doesn't work with current linux
>> serial driver unless you do:
>>
>> --- a/drivers/tty/serial/sh-sci.c
>> +++ b/drivers/tty/serial/sh-sci.c
>> @@ -2193,7 +2193,7 @@ static void sci_reset(struct uart_port *port)
>>                         setup_timer(&s->rx_fifo_timer, rx_fifo_timer_fn,
>>                                     (unsigned long)s);
>>                 } else {
>> -                       if (port->type == PORT_SCIFA ||
>> +                       if (1 || port->type == PORT_SCIFA ||
>>                             port->type == PORT_SCIFB)
>>                                 scif_set_rtrg(port, 1);
>>                         else
>>
>> Does this DMA stuff make that situation worse?
> 
> No, SH-SCI DMA is not used on your platform.
> 
> Gr{oetje,eeting}s,

This issue is still there. QEMU's serial output is borked with the last
year's worth of vanilla superh kernels.

Rob