diff options
| author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2019-06-18 22:27:14 -0700 |
|---|---|---|
| committer | Andrzej Hajda <a.hajda@samsung.com> | 2019-06-27 13:38:19 +0200 |
| commit | d174db0788b437d83b7fed4531dbe8ace2c0b2a8 (patch) | |
| tree | 92a0db416555b7a9076975b35d5e6fe5bbabae73 /drivers/gpu/drm/bridge | |
| parent | 7264892648bac9c1a5f20505a569abf85370b7c4 (diff) | |
| download | linux-d174db0788b437d83b7fed4531dbe8ace2c0b2a8.tar.bz2 | |
drm/bridge: tc358767: Drop unnecessary 8 byte buffer
tc_get_display_props() never reads more than a byte via AUX, so
there's no need to reserve 8 for that purpose. No function change
intended.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Cory Tusar <cory.tusar@zii.aero>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190619052716.16831-14-andrew.smirnov@gmail.com
Diffstat (limited to 'drivers/gpu/drm/bridge')
| -rw-r--r-- | drivers/gpu/drm/bridge/tc358767.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index 643935027638..af14c7cd12e2 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -636,8 +636,7 @@ err: static int tc_get_display_props(struct tc_data *tc) { int ret; - /* temp buffer */ - u8 tmp[8]; + u8 reg; /* Read DP Rx Link Capability */ ret = drm_dp_link_probe(&tc->aux, &tc->link.base); @@ -653,21 +652,21 @@ static int tc_get_display_props(struct tc_data *tc) tc->link.base.num_lanes = 2; } - ret = drm_dp_dpcd_readb(&tc->aux, DP_MAX_DOWNSPREAD, tmp); + ret = drm_dp_dpcd_readb(&tc->aux, DP_MAX_DOWNSPREAD, ®); if (ret < 0) goto err_dpcd_read; - tc->link.spread = tmp[0] & DP_MAX_DOWNSPREAD_0_5; + tc->link.spread = reg & DP_MAX_DOWNSPREAD_0_5; - ret = drm_dp_dpcd_readb(&tc->aux, DP_MAIN_LINK_CHANNEL_CODING, tmp); + ret = drm_dp_dpcd_readb(&tc->aux, DP_MAIN_LINK_CHANNEL_CODING, ®); if (ret < 0) goto err_dpcd_read; tc->link.scrambler_dis = false; /* read assr */ - ret = drm_dp_dpcd_readb(&tc->aux, DP_EDP_CONFIGURATION_SET, tmp); + ret = drm_dp_dpcd_readb(&tc->aux, DP_EDP_CONFIGURATION_SET, ®); if (ret < 0) goto err_dpcd_read; - tc->link.assr = tmp[0] & DP_ALTERNATE_SCRAMBLER_RESET_ENABLE; + tc->link.assr = reg & DP_ALTERNATE_SCRAMBLER_RESET_ENABLE; dev_dbg(tc->dev, "DPCD rev: %d.%d, rate: %s, lanes: %d, framing: %s\n", tc->link.base.revision >> 4, tc->link.base.revision & 0x0f, |