AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-01-21 17:51:17 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

drm/sun4i: Move access control before setting the register as documented

Browse Source 
Unlike what is currently being done, the ACCESS_CTRL bit documentation asks
that this bit should be set before modifying any register. The code in the
BSP also does this, so make sure we do this as well.

Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-18-paul.kocialkowski@bootlin.com
This commit is contained in:
Maxime Ripard 2019-01-18 15:51:27 +01:00
parent 9db9c0cf58
commit 9401860156
No known key found for this signature in database
GPG Key ID: E3EF0D6F671851C5
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/sun4i/sun4i_frontend.c
View File

@ -75,6 +75,10 @@ static void sun4i_frontend_scaler_init(struct sun4i_frontend *frontend)
{
int i;
regmap_write_bits(frontend->regs, SUN4I_FRONTEND_FRM_CTRL_REG,
SUN4I_FRONTEND_FRM_CTRL_COEF_ACCESS_CTRL,
SUN4I_FRONTEND_FRM_CTRL_COEF_ACCESS_CTRL);
for (i = 0; i < 32; i++) {
regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_HORZCOEF0_REG(i),
sun4i_frontend_horz_coef[2 * i]);
@ -90,9 +94,6 @@ static void sun4i_frontend_scaler_init(struct sun4i_frontend *frontend)
sun4i_frontend_vert_coef[i]);
}
regmap_update_bits(frontend->regs, SUN4I_FRONTEND_FRM_CTRL_REG,
SUN4I_FRONTEND_FRM_CTRL_COEF_ACCESS_CTRL,
SUN4I_FRONTEND_FRM_CTRL_COEF_ACCESS_CTRL);
}
int sun4i_frontend_init(struct sun4i_frontend *frontend)