From: Tony Lindgren <tony@atomide.com> To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org Cc: Fengguang Wu <fengguang.wu@intel.com>, Stephen Rothwell <sfr@canb.auug.org.au>, Paul Walmsley <paul@pwsan.com>, Samuel Ortiz <sameo@linux.intel.com>, Arnd Bergmann <arnd@arndb.de>, Olof Johansson <olof@lixom.net>, Felipe Balbi <balbi@ti.com> Subject: [PATCH] mfd: Fix compile for twl-core.c by removing cpu_is_omap usage Date: Mon, 17 Sep 2012 13:29:44 -0700 [thread overview] Message-ID: <20120917202943.GV4521@atomide.com> (raw) Commit 7d7e1eba (ARM: OMAP2+: Prepare for irqs.h removal) broke compile for non-omap as include plat/cpu.h was added: drivers/mfd/twl-core.c:49:22: fatal error: plat/cpu.h: No such file or directory This header was indirectly included earlier when SPARSE_IRQ was not set, but does not exist on most platforms. Fix the problem by removing the cpu_is_omap usage that should not exist in drivers at all. We can do this by adding proper clock aliases for the twl-core.c drivers, and drop separate handling for cases when clock framework is not available as the behaviour will stay the same. Note that we need to add a platform device to avoid using the i2c provided names that may be different on various omaps. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Paul Walmsley <paul@pwsan.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Tony Lindgren <tony@atomide.com> --- Samuel, I'd like to queue this via arm-soc as that's where I have the breaking patch is if this patch is OK with you. --- a/arch/arm/mach-omap2/clock2430_data.c +++ b/arch/arm/mach-omap2/clock2430_data.c @@ -1856,6 +1856,7 @@ static struct omap_clk omap2430_clks[] = { CLK(NULL, "func_32k_ck", &func_32k_ck, CK_243X), CLK(NULL, "secure_32k_ck", &secure_32k_ck, CK_243X), CLK(NULL, "osc_ck", &osc_ck, CK_243X), + CLK("twl", "fck", &osc_ck, CK_243X), CLK(NULL, "sys_ck", &sys_ck, CK_243X), CLK(NULL, "alt_ck", &alt_ck, CK_243X), CLK(NULL, "mcbsp_clks", &mcbsp_clks, CK_243X), --- a/arch/arm/mach-omap2/clock3xxx_data.c +++ b/arch/arm/mach-omap2/clock3xxx_data.c @@ -3226,6 +3226,7 @@ static struct omap_clk omap3xxx_clks[] = { CLK(NULL, "virt_26000000_ck", &virt_26000000_ck, CK_3XXX), CLK(NULL, "virt_38_4m_ck", &virt_38_4m_ck, CK_3XXX), CLK(NULL, "osc_sys_ck", &osc_sys_ck, CK_3XXX), + CLK("twl", "fck", &osc_sys_ck, CK_3XXX), CLK(NULL, "sys_ck", &sys_ck, CK_3XXX), CLK(NULL, "sys_altclk", &sys_altclk, CK_3XXX), CLK(NULL, "mcbsp_clks", &mcbsp_clks, CK_3XXX), --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -46,8 +46,6 @@ #include <linux/i2c.h> #include <linux/i2c/twl.h> -#include <plat/cpu.h> - #include "twl-core.h" /* @@ -1134,12 +1132,7 @@ static void clocks_init(struct device *dev, u32 rate; u8 ctrl = HFCLK_FREQ_26_MHZ; -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) - if (cpu_is_omap2430()) - osc = clk_get(dev, "osc_ck"); - else - osc = clk_get(dev, "osc_sys_ck"); - + osc = clk_get(dev, "fck"); if (IS_ERR(osc)) { printk(KERN_WARNING "Skipping twl internal clock init and " "using bootloader value (unknown osc rate)\n"); @@ -1149,18 +1142,6 @@ static void clocks_init(struct device *dev, rate = clk_get_rate(osc); clk_put(osc); -#else - /* REVISIT for non-OMAP systems, pass the clock rate from - * board init code, using platform_data. - */ - osc = ERR_PTR(-EIO); - - printk(KERN_WARNING "Skipping twl internal clock init and " - "using bootloader value (unknown osc rate)\n"); - - return; -#endif - switch (rate) { case 19200000: ctrl = HFCLK_FREQ_19p2_MHZ; @@ -1222,10 +1203,23 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct twl4030_platform_data *pdata = client->dev.platform_data; struct device_node *node = client->dev.of_node; + struct platform_device *pdev; int irq_base = 0; int status; unsigned i, num_slaves; + pdev = platform_device_alloc(DRIVER_NAME, -1); + if (!pdev) { + dev_err(&client->dev, "can't alloc pdev\n"); + return -ENOMEM; + } + + status = platform_device_add(pdev); + if (status) { + platform_device_put(pdev); + return status; + } + if (node && !pdata) { /* * XXX: Temporary pdata until the information is correctly @@ -1234,23 +1228,30 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) pdata = devm_kzalloc(&client->dev, sizeof(struct twl4030_platform_data), GFP_KERNEL); - if (!pdata) - return -ENOMEM; + if (!pdata) { + status = -ENOMEM; + goto free; + } } if (!pdata) { dev_dbg(&client->dev, "no platform data?\n"); - return -EINVAL; + status = -EINVAL; + goto free; } + platform_set_drvdata(pdev, pdata); + if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) { dev_dbg(&client->dev, "can't talk I2C?\n"); - return -EIO; + status = -EIO; + goto free; } if (inuse) { dev_dbg(&client->dev, "driver is already in use\n"); - return -EBUSY; + status = -EBUSY; + goto free; } if ((id->driver_data) & TWL6030_CLASS) { @@ -1285,7 +1286,7 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) inuse = true; /* setup clock framework */ - clocks_init(&client->dev, pdata->clock); + clocks_init(&pdev->dev, pdata->clock); /* read TWL IDCODE Register */ if (twl_id == TWL4030_CLASS_ID) { @@ -1335,6 +1336,9 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) fail: if (status < 0) twl_remove(client); +free: + if (status < 0) + platform_device_unregister(pdev); return status; }
WARNING: multiple messages have this Message-ID (diff)
From: tony@atomide.com (Tony Lindgren) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH] mfd: Fix compile for twl-core.c by removing cpu_is_omap usage Date: Mon, 17 Sep 2012 13:29:44 -0700 [thread overview] Message-ID: <20120917202943.GV4521@atomide.com> (raw) Commit 7d7e1eba (ARM: OMAP2+: Prepare for irqs.h removal) broke compile for non-omap as include plat/cpu.h was added: drivers/mfd/twl-core.c:49:22: fatal error: plat/cpu.h: No such file or directory This header was indirectly included earlier when SPARSE_IRQ was not set, but does not exist on most platforms. Fix the problem by removing the cpu_is_omap usage that should not exist in drivers at all. We can do this by adding proper clock aliases for the twl-core.c drivers, and drop separate handling for cases when clock framework is not available as the behaviour will stay the same. Note that we need to add a platform device to avoid using the i2c provided names that may be different on various omaps. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Paul Walmsley <paul@pwsan.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Tony Lindgren <tony@atomide.com> --- Samuel, I'd like to queue this via arm-soc as that's where I have the breaking patch is if this patch is OK with you. --- a/arch/arm/mach-omap2/clock2430_data.c +++ b/arch/arm/mach-omap2/clock2430_data.c @@ -1856,6 +1856,7 @@ static struct omap_clk omap2430_clks[] = { CLK(NULL, "func_32k_ck", &func_32k_ck, CK_243X), CLK(NULL, "secure_32k_ck", &secure_32k_ck, CK_243X), CLK(NULL, "osc_ck", &osc_ck, CK_243X), + CLK("twl", "fck", &osc_ck, CK_243X), CLK(NULL, "sys_ck", &sys_ck, CK_243X), CLK(NULL, "alt_ck", &alt_ck, CK_243X), CLK(NULL, "mcbsp_clks", &mcbsp_clks, CK_243X), --- a/arch/arm/mach-omap2/clock3xxx_data.c +++ b/arch/arm/mach-omap2/clock3xxx_data.c @@ -3226,6 +3226,7 @@ static struct omap_clk omap3xxx_clks[] = { CLK(NULL, "virt_26000000_ck", &virt_26000000_ck, CK_3XXX), CLK(NULL, "virt_38_4m_ck", &virt_38_4m_ck, CK_3XXX), CLK(NULL, "osc_sys_ck", &osc_sys_ck, CK_3XXX), + CLK("twl", "fck", &osc_sys_ck, CK_3XXX), CLK(NULL, "sys_ck", &sys_ck, CK_3XXX), CLK(NULL, "sys_altclk", &sys_altclk, CK_3XXX), CLK(NULL, "mcbsp_clks", &mcbsp_clks, CK_3XXX), --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -46,8 +46,6 @@ #include <linux/i2c.h> #include <linux/i2c/twl.h> -#include <plat/cpu.h> - #include "twl-core.h" /* @@ -1134,12 +1132,7 @@ static void clocks_init(struct device *dev, u32 rate; u8 ctrl = HFCLK_FREQ_26_MHZ; -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) - if (cpu_is_omap2430()) - osc = clk_get(dev, "osc_ck"); - else - osc = clk_get(dev, "osc_sys_ck"); - + osc = clk_get(dev, "fck"); if (IS_ERR(osc)) { printk(KERN_WARNING "Skipping twl internal clock init and " "using bootloader value (unknown osc rate)\n"); @@ -1149,18 +1142,6 @@ static void clocks_init(struct device *dev, rate = clk_get_rate(osc); clk_put(osc); -#else - /* REVISIT for non-OMAP systems, pass the clock rate from - * board init code, using platform_data. - */ - osc = ERR_PTR(-EIO); - - printk(KERN_WARNING "Skipping twl internal clock init and " - "using bootloader value (unknown osc rate)\n"); - - return; -#endif - switch (rate) { case 19200000: ctrl = HFCLK_FREQ_19p2_MHZ; @@ -1222,10 +1203,23 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct twl4030_platform_data *pdata = client->dev.platform_data; struct device_node *node = client->dev.of_node; + struct platform_device *pdev; int irq_base = 0; int status; unsigned i, num_slaves; + pdev = platform_device_alloc(DRIVER_NAME, -1); + if (!pdev) { + dev_err(&client->dev, "can't alloc pdev\n"); + return -ENOMEM; + } + + status = platform_device_add(pdev); + if (status) { + platform_device_put(pdev); + return status; + } + if (node && !pdata) { /* * XXX: Temporary pdata until the information is correctly @@ -1234,23 +1228,30 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) pdata = devm_kzalloc(&client->dev, sizeof(struct twl4030_platform_data), GFP_KERNEL); - if (!pdata) - return -ENOMEM; + if (!pdata) { + status = -ENOMEM; + goto free; + } } if (!pdata) { dev_dbg(&client->dev, "no platform data?\n"); - return -EINVAL; + status = -EINVAL; + goto free; } + platform_set_drvdata(pdev, pdata); + if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) { dev_dbg(&client->dev, "can't talk I2C?\n"); - return -EIO; + status = -EIO; + goto free; } if (inuse) { dev_dbg(&client->dev, "driver is already in use\n"); - return -EBUSY; + status = -EBUSY; + goto free; } if ((id->driver_data) & TWL6030_CLASS) { @@ -1285,7 +1286,7 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) inuse = true; /* setup clock framework */ - clocks_init(&client->dev, pdata->clock); + clocks_init(&pdev->dev, pdata->clock); /* read TWL IDCODE Register */ if (twl_id == TWL4030_CLASS_ID) { @@ -1335,6 +1336,9 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) fail: if (status < 0) twl_remove(client); +free: + if (status < 0) + platform_device_unregister(pdev); return status; }
next reply other threads:[~2012-09-17 20:29 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-09-17 20:29 Tony Lindgren [this message] 2012-09-17 20:29 ` [PATCH] mfd: Fix compile for twl-core.c by removing cpu_is_omap usage Tony Lindgren 2012-09-17 20:43 ` Arnd Bergmann 2012-09-17 20:43 ` Arnd Bergmann 2012-09-17 22:08 ` Paul Walmsley 2012-09-17 22:08 ` Paul Walmsley 2012-09-17 22:14 ` Tony Lindgren 2012-09-17 22:14 ` Tony Lindgren 2012-09-17 22:24 ` Paul Walmsley 2012-09-17 22:24 ` Paul Walmsley 2012-09-17 22:26 ` Tony Lindgren 2012-09-17 22:26 ` Tony Lindgren 2012-09-18 2:30 ` Tony Lindgren 2012-09-18 2:30 ` Tony Lindgren 2012-09-17 22:59 ` Samuel Ortiz 2012-09-17 22:59 ` Samuel Ortiz 2012-09-18 4:51 ` Felipe Balbi 2012-09-18 4:51 ` Felipe Balbi
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