diff options
| author | Krzysztof Kozlowski <krzk@kernel.org> | 2020-08-06 20:20:23 +0200 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzk@kernel.org> | 2020-08-19 20:58:10 +0200 |
| commit | b84e23f5135103c45022b0e4a4ed2459d5398a7e (patch) | |
| tree | b41da5da053dc35944de8fec10c83468cbb13aa9 /drivers | |
| parent | ARM: s3c24xx: make S3C24XX_MISCCR access indirect (diff) | |
| download | linux-b84e23f5135103c45022b0e4a4ed2459d5398a7e.tar.xz linux-b84e23f5135103c45022b0e4a4ed2459d5398a7e.zip | |
ARM: s3c24xx: pass pointer to clk driver via platform data
Passing pointers directly as platform data is fragile and undocumented.
Better to create a platform data structure which explicitly documents
what is passed to the driver.
Suggested-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200806182059.2431-6-krzk@kernel.org
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/clk/samsung/clk-s3c2410-dclk.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/clk/samsung/clk-s3c2410-dclk.c b/drivers/clk/samsung/clk-s3c2410-dclk.c index 3e0f23e8ec21..f5e0a6ba2d12 100644 --- a/drivers/clk/samsung/clk-s3c2410-dclk.c +++ b/drivers/clk/samsung/clk-s3c2410-dclk.c @@ -11,6 +11,7 @@ #include <linux/clk-provider.h> #include <linux/io.h> #include <linux/platform_device.h> +#include <linux/platform_data/clk-s3c2410.h> #include <linux/module.h> #include "clk.h" @@ -89,10 +90,14 @@ static struct clk_hw *s3c24xx_register_clkout(struct device *dev, const char *name, const char **parent_names, u8 num_parents, u8 shift, u32 mask) { + struct s3c2410_clk_platform_data *pdata = dev_get_platdata(dev); struct s3c24xx_clkout *clkout; struct clk_init_data init; int ret; + if (!pdata) + return ERR_PTR(-EINVAL); + /* allocate the clkout */ clkout = kzalloc(sizeof(*clkout), GFP_KERNEL); if (!clkout) @@ -107,7 +112,7 @@ static struct clk_hw *s3c24xx_register_clkout(struct device *dev, clkout->shift = shift; clkout->mask = mask; clkout->hw.init = &init; - clkout->modify_misccr = dev->platform_data; + clkout->modify_misccr = pdata->modify_misccr; ret = clk_hw_register(dev, &clkout->hw); if (ret) |