From: Javier Martinez Canillas Date: Sat, 14 Oct 2023 07:15:05 +0000 (+0200) Subject: drm/ssd130x: Rename commands that are shared across chip families X-Git-Tag: io_uring-6.7-2023-11-10~63^2~1^2~100 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=9081d21a5a6b575551bfd6281981537140b55338;p=linux-block.git drm/ssd130x: Rename commands that are shared across chip families There are some commands that are shared between the SSD130x and SSD132x controller families, define these as a common SSD13XX set of commands. Signed-off-by: Javier Martinez Canillas Acked-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20231014071520.1342189-4-javierm@redhat.com --- diff --git a/drivers/gpu/drm/solomon/ssd130x-spi.c b/drivers/gpu/drm/solomon/ssd130x-spi.c index 257819bccbc8..89989da705d7 100644 --- a/drivers/gpu/drm/solomon/ssd130x-spi.c +++ b/drivers/gpu/drm/solomon/ssd130x-spi.c @@ -34,10 +34,10 @@ static int ssd130x_spi_write(void *context, const void *data, size_t count) struct spi_device *spi = t->spi; const u8 *reg = data; - if (*reg == SSD130X_COMMAND) + if (*reg == SSD13XX_COMMAND) gpiod_set_value_cansleep(t->dc, 0); - if (*reg == SSD130X_DATA) + if (*reg == SSD13XX_DATA) gpiod_set_value_cansleep(t->dc, 1); /* Remove control byte since is not used in a 4-wire SPI interface */ diff --git a/drivers/gpu/drm/solomon/ssd130x.c b/drivers/gpu/drm/solomon/ssd130x.c index 84093bcc8584..e11f16bf795e 100644 --- a/drivers/gpu/drm/solomon/ssd130x.c +++ b/drivers/gpu/drm/solomon/ssd130x.c @@ -44,18 +44,24 @@ #define SSD130X_PAGE_HEIGHT 8 +/* ssd13xx commands */ +#define SSD13XX_CONTRAST 0x81 +#define SSD13XX_SET_SEG_REMAP 0xa0 +#define SSD13XX_SET_MULTIPLEX_RATIO 0xa8 +#define SSD13XX_DISPLAY_OFF 0xae +#define SSD13XX_DISPLAY_ON 0xaf + +#define SSD13XX_SET_SEG_REMAP_MASK GENMASK(0, 0) +#define SSD13XX_SET_SEG_REMAP_SET(val) FIELD_PREP(SSD13XX_SET_SEG_REMAP_MASK, (val)) + +/* ssd130x commands */ #define SSD130X_PAGE_COL_START_LOW 0x00 #define SSD130X_PAGE_COL_START_HIGH 0x10 #define SSD130X_SET_ADDRESS_MODE 0x20 #define SSD130X_SET_COL_RANGE 0x21 #define SSD130X_SET_PAGE_RANGE 0x22 -#define SSD130X_CONTRAST 0x81 #define SSD130X_SET_LOOKUP_TABLE 0x91 #define SSD130X_CHARGE_PUMP 0x8d -#define SSD130X_SET_SEG_REMAP 0xa0 -#define SSD130X_DISPLAY_OFF 0xae -#define SSD130X_SET_MULTIPLEX_RATIO 0xa8 -#define SSD130X_DISPLAY_ON 0xaf #define SSD130X_START_PAGE_ADDRESS 0xb0 #define SSD130X_SET_COM_SCAN_DIR 0xc0 #define SSD130X_SET_DISPLAY_OFFSET 0xd3 @@ -65,13 +71,12 @@ #define SSD130X_SET_COM_PINS_CONFIG 0xda #define SSD130X_SET_VCOMH 0xdb +/* ssd130x commands accessors */ #define SSD130X_PAGE_COL_START_MASK GENMASK(3, 0) #define SSD130X_PAGE_COL_START_HIGH_SET(val) FIELD_PREP(SSD130X_PAGE_COL_START_MASK, (val) >> 4) #define SSD130X_PAGE_COL_START_LOW_SET(val) FIELD_PREP(SSD130X_PAGE_COL_START_MASK, (val)) #define SSD130X_START_PAGE_ADDRESS_MASK GENMASK(2, 0) #define SSD130X_START_PAGE_ADDRESS_SET(val) FIELD_PREP(SSD130X_START_PAGE_ADDRESS_MASK, (val)) -#define SSD130X_SET_SEG_REMAP_MASK GENMASK(0, 0) -#define SSD130X_SET_SEG_REMAP_SET(val) FIELD_PREP(SSD130X_SET_SEG_REMAP_MASK, (val)) #define SSD130X_SET_COM_SCAN_DIR_MASK GENMASK(3, 3) #define SSD130X_SET_COM_SCAN_DIR_SET(val) FIELD_PREP(SSD130X_SET_COM_SCAN_DIR_MASK, (val)) #define SSD130X_SET_CLOCK_DIV_MASK GENMASK(3, 0) @@ -171,20 +176,20 @@ static inline struct ssd130x_device *drm_to_ssd130x(struct drm_device *drm) } /* - * Helper to write data (SSD130X_DATA) to the device. + * Helper to write data (SSD13XX_DATA) to the device. */ static int ssd130x_write_data(struct ssd130x_device *ssd130x, u8 *values, int count) { - return regmap_bulk_write(ssd130x->regmap, SSD130X_DATA, values, count); + return regmap_bulk_write(ssd130x->regmap, SSD13XX_DATA, values, count); } /* - * Helper to write command (SSD130X_COMMAND). The fist variadic argument + * Helper to write command (SSD13XX_COMMAND). The fist variadic argument * is the command to write and the following are the command options. * - * Note that the ssd130x protocol requires each command and option to be - * written as a SSD130X_COMMAND device register value. That is why a call - * to regmap_write(..., SSD130X_COMMAND, ...) is done for each argument. + * Note that the ssd13xx protocol requires each command and option to be + * written as a SSD13XX_COMMAND device register value. That is why a call + * to regmap_write(..., SSD13XX_COMMAND, ...) is done for each argument. */ static int ssd130x_write_cmd(struct ssd130x_device *ssd130x, int count, /* u8 cmd, u8 option, ... */...) @@ -197,7 +202,7 @@ static int ssd130x_write_cmd(struct ssd130x_device *ssd130x, int count, do { value = va_arg(ap, int); - ret = regmap_write(ssd130x->regmap, SSD130X_COMMAND, value); + ret = regmap_write(ssd130x->regmap, SSD13XX_COMMAND, value); if (ret) goto out_end; } while (--count); @@ -341,13 +346,13 @@ static int ssd130x_init(struct ssd130x_device *ssd130x) int ret; /* Set initial contrast */ - ret = ssd130x_write_cmd(ssd130x, 2, SSD130X_CONTRAST, ssd130x->contrast); + ret = ssd130x_write_cmd(ssd130x, 2, SSD13XX_CONTRAST, ssd130x->contrast); if (ret < 0) return ret; /* Set segment re-map */ - seg_remap = (SSD130X_SET_SEG_REMAP | - SSD130X_SET_SEG_REMAP_SET(ssd130x->seg_remap)); + seg_remap = (SSD13XX_SET_SEG_REMAP | + SSD13XX_SET_SEG_REMAP_SET(ssd130x->seg_remap)); ret = ssd130x_write_cmd(ssd130x, 1, seg_remap); if (ret < 0) return ret; @@ -360,7 +365,7 @@ static int ssd130x_init(struct ssd130x_device *ssd130x) return ret; /* Set multiplex ratio value */ - ret = ssd130x_write_cmd(ssd130x, 2, SSD130X_SET_MULTIPLEX_RATIO, ssd130x->height - 1); + ret = ssd130x_write_cmd(ssd130x, 2, SSD13XX_SET_MULTIPLEX_RATIO, ssd130x->height - 1); if (ret < 0) return ret; @@ -915,7 +920,7 @@ static void ssd130x_encoder_atomic_enable(struct drm_encoder *encoder, if (ret) goto power_off; - ssd130x_write_cmd(ssd130x, 1, SSD130X_DISPLAY_ON); + ssd130x_write_cmd(ssd130x, 1, SSD13XX_DISPLAY_ON); backlight_enable(ssd130x->bl_dev); @@ -934,7 +939,7 @@ static void ssd130x_encoder_atomic_disable(struct drm_encoder *encoder, backlight_disable(ssd130x->bl_dev); - ssd130x_write_cmd(ssd130x, 1, SSD130X_DISPLAY_OFF); + ssd130x_write_cmd(ssd130x, 1, SSD13XX_DISPLAY_OFF); ssd130x_power_off(ssd130x); } @@ -1010,7 +1015,7 @@ static int ssd130x_update_bl(struct backlight_device *bdev) ssd130x->contrast = brightness; - ret = ssd130x_write_cmd(ssd130x, 1, SSD130X_CONTRAST); + ret = ssd130x_write_cmd(ssd130x, 1, SSD13XX_CONTRAST); if (ret < 0) return ret; diff --git a/drivers/gpu/drm/solomon/ssd130x.h b/drivers/gpu/drm/solomon/ssd130x.h index c562c2d00c16..a5a25e054d2f 100644 --- a/drivers/gpu/drm/solomon/ssd130x.h +++ b/drivers/gpu/drm/solomon/ssd130x.h @@ -21,8 +21,8 @@ #include -#define SSD130X_DATA 0x40 -#define SSD130X_COMMAND 0x80 +#define SSD13XX_DATA 0x40 +#define SSD13XX_COMMAND 0x80 enum ssd130x_family_ids { SSD130X_FAMILY