diff options
| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2017-08-10 15:11:03 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2017-08-16 12:52:39 +0300 |
| commit | 5cdc8dbbdae163b08baa60a1c9408c4ea3af8643 (patch) | |
| tree | f33c9efffcff2b28b74fdd8a11d102b9794df614 /drivers/gpu/drm | |
| parent | d874b3a7c44ca48c0e57b8744c1eed2a6d299ba1 (diff) | |
drm/omap: use regmap_update_bit() when muxing DSI pads
Use regmap_update_bits instead of regmap_read/write, which simplifies
the code.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/dss/dsi.c | 15 |
1 files changed, 3 insertions, 12 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c index a66d2b1a6c74..1855d69b211d 100644 --- a/drivers/gpu/drm/omapdrm/dss/dsi.c +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c @@ -2107,7 +2107,6 @@ static int dsi_omap4_mux_pads(struct dsi_data *dsi, unsigned int lanes) { u32 enable_mask, enable_shift; u32 pipd_mask, pipd_shift; - u32 reg; if (!dsi->syscon) return 0; @@ -2126,17 +2125,9 @@ static int dsi_omap4_mux_pads(struct dsi_data *dsi, unsigned int lanes) return -ENODEV; } - regmap_read(dsi->syscon, OMAP4_DSIPHY_SYSCON_OFFSET, ®); - - reg &= ~enable_mask; - reg &= ~pipd_mask; - - reg |= (lanes << enable_shift) & enable_mask; - reg |= (lanes << pipd_shift) & pipd_mask; - - regmap_write(dsi->syscon, OMAP4_DSIPHY_SYSCON_OFFSET, reg); - - return 0; + return regmap_update_bits(dsi->syscon, OMAP4_DSIPHY_SYSCON_OFFSET, + enable_mask | pipd_mask, + (lanes << enable_shift) | (lanes << pipd_shift)); } static int dsi_enable_pads(struct dsi_data *dsi, unsigned int lane_mask) |