[1/3] media: imx7-media-csi: Use functions instead of macros
Commit Message
Currently there is a macro for reading and another macro for writing
to the CSI registers.
Functions can do parameter type checking, which leads to a safer code,
so switch from macro to function implementation.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
drivers/staging/media/imx/imx7-media-csi.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
Comments
Oi Fabio,
On Sat 01 Jun 2019 at 18:51, Fabio Estevam wrote:
> Currently there is a macro for reading and another macro for writing
> to the CSI registers.
>
> Functions can do parameter type checking, which leads to a safer code,
> so switch from macro to function implementation.
>
> Signed-off-by: Fabio Estevam <festevam@gmail.com>
>
Thanks for the patches. for all of them:
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
---
Cheers,
Rui
> ---
> drivers/staging/media/imx/imx7-media-csi.c | 14 ++++++++++----
> 1 file changed, 10 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c
> index b1af8694899e..8abdf253696d 100644
> --- a/drivers/staging/media/imx/imx7-media-csi.c
> +++ b/drivers/staging/media/imx/imx7-media-csi.c
> @@ -195,10 +195,16 @@ struct imx7_csi {
> struct completion last_eof_completion;
> };
>
> -#define imx7_csi_reg_read(_csi, _offset) \
> - __raw_readl((_csi)->regbase + (_offset))
> -#define imx7_csi_reg_write(_csi, _val, _offset) \
> - __raw_writel(_val, (_csi)->regbase + (_offset))
> +static u32 imx7_csi_reg_read(struct imx7_csi *csi, unsigned int offset)
> +{
> + return readl(csi->regbase + offset);
> +}
> +
> +static void imx7_csi_reg_write(struct imx7_csi *csi, unsigned int value,
> + unsigned int offset)
> +{
> + writel(value, csi->regbase + offset);
> +}
>
> static void imx7_csi_hw_reset(struct imx7_csi *csi)
> {
@@ -195,10 +195,16 @@ struct imx7_csi {
struct completion last_eof_completion;
};
-#define imx7_csi_reg_read(_csi, _offset) \
- __raw_readl((_csi)->regbase + (_offset))
-#define imx7_csi_reg_write(_csi, _val, _offset) \
- __raw_writel(_val, (_csi)->regbase + (_offset))
+static u32 imx7_csi_reg_read(struct imx7_csi *csi, unsigned int offset)
+{
+ return readl(csi->regbase + offset);
+}
+
+static void imx7_csi_reg_write(struct imx7_csi *csi, unsigned int value,
+ unsigned int offset)
+{
+ writel(value, csi->regbase + offset);
+}
static void imx7_csi_hw_reset(struct imx7_csi *csi)
{