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drm/sun4i: frontend: Add proper definitions for format registers

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This introduces proper definitions for the input and output format
configuration registers instead of a macro and raw values in the code,
with the intent to increase code readability and reduce indirections.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-19-paul.kocialkowski@bootlin.com
This commit is contained in:
Paul Kocialkowski 2018-11-23 10:24:50 +01:00 committed by Maxime Ripard
parent 47d0f9bdb1
commit 9579f91904
No known key found for this signature in database
GPG Key ID: E3EF0D6F671851C5
2 changed files with 10 additions and 12 deletions
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14
drivers/gpu/drm/sun4i/sun4i_frontend.c
View File

@ -108,7 +108,7 @@ static int sun4i_frontend_drm_format_to_input_fmt(uint32_t fmt, u32 *val)
{
switch (fmt) {
case DRM_FORMAT_XRGB8888:
*val = 5;
*val = SUN4I_FRONTEND_INPUT_FMT_DATA_FMT_RGB;
return 0;
default:
@ -120,7 +120,7 @@ static int sun4i_frontend_drm_format_to_input_mode(uint32_t fmt, u32 *val)
{
switch (fmt) {
case DRM_FORMAT_XRGB8888:
*val = 1;
*val = SUN4I_FRONTEND_INPUT_FMT_DATA_MOD_PACKED;
return 0;
default:
@ -132,7 +132,7 @@ static int sun4i_frontend_drm_format_to_input_sequence(uint32_t fmt, u32 *val)
{
switch (fmt) {
case DRM_FORMAT_XRGB8888:
*val = 1;
*val = SUN4I_FRONTEND_INPUT_FMT_DATA_PS_XRGB;
return 0;
default:
@ -144,7 +144,7 @@ static int sun4i_frontend_drm_format_to_output_fmt(uint32_t fmt, u32 *val)
{
switch (fmt) {
case DRM_FORMAT_XRGB8888:
*val = 2;
*val = SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT_XRGB8888;
return 0;
default:
@ -218,9 +218,7 @@ int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,
SUN4I_FRONTEND_BYPASS_CSC_EN);
regmap_write(frontend->regs, SUN4I_FRONTEND_INPUT_FMT_REG,
SUN4I_FRONTEND_INPUT_FMT_DATA_MOD(in_mod_val) |
SUN4I_FRONTEND_INPUT_FMT_DATA_FMT(in_fmt_val) |
SUN4I_FRONTEND_INPUT_FMT_PS(in_ps_val));
in_mod_val | in_fmt_val | in_ps_val);
/*
* TODO: It look like the A31 and A80 at least will need the
@ -228,7 +226,7 @@ int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,
* ARGB8888).
*/
regmap_write(frontend->regs, SUN4I_FRONTEND_OUTPUT_FMT_REG,
SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT(out_fmt_val));
out_fmt_val);
return 0;
}

8
drivers/gpu/drm/sun4i/sun4i_frontend.h
View File

@ -26,12 +26,12 @@
#define SUN4I_FRONTEND_LINESTRD0_REG 0x040
#define SUN4I_FRONTEND_INPUT_FMT_REG 0x04c
#define SUN4I_FRONTEND_INPUT_FMT_DATA_MOD(mod) ((mod) << 8)
#define SUN4I_FRONTEND_INPUT_FMT_DATA_FMT(fmt) ((fmt) << 4)
#define SUN4I_FRONTEND_INPUT_FMT_PS(ps) (ps)
#define SUN4I_FRONTEND_INPUT_FMT_DATA_MOD_PACKED (1 << 8)
#define SUN4I_FRONTEND_INPUT_FMT_DATA_FMT_RGB (5 << 4)
#define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_XRGB 1
#define SUN4I_FRONTEND_OUTPUT_FMT_REG 0x05c
#define SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT(fmt) (fmt)
#define SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT_XRGB8888 2
#define SUN4I_FRONTEND_CH0_INSIZE_REG 0x100
#define SUN4I_FRONTEND_INSIZE(h, w) ((((h) - 1) << 16) | (((w) - 1)))