From: Philippe CORNU Date: Tue, 1 Aug 2017 13:23:08 +0000 (+0200) Subject: drm/bridge/synopsys: dsi: explicitly request exclusive reset control X-Git-Tag: v4.19~2077^2~62^2~56 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b191406e80af9c2d7e95537b5b3ef71374e6eed5;p=platform%2Fkernel%2Flinux-rpi3.git drm/bridge/synopsys: dsi: explicitly request exclusive reset control Based on patch "Convert drivers to explicit reset API" from Philipp Zabel Commit a53e35db70d1 ("reset: Ensure drivers are explicit when requesting reset lines") started to transition the reset control request API calls to explicitly state whether the driver needs exclusive or shared reset control behavior. Convert all drivers requesting exclusive resets to the explicit API call so the temporary transition helpers can be removed. No functional changes. Cc: Philipp Zabel Signed-off-by: Philippe CORNU Acked-by: Philipp Zabel Reviewed-by: Andrzej Hajda Signed-off-by: Archit Taneja Link: https://patchwork.freedesktop.org/patch/msgid/1501593788-21036-4-git-send-email-philippe.cornu@st.com --- diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c index 781340d..f4f633a 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c @@ -885,15 +885,14 @@ __dw_mipi_dsi_probe(struct platform_device *pdev, * Note that the reset was not defined in the initial device tree, so * we have to be prepared for it not being found. */ - apb_rst = devm_reset_control_get(dev, "apb"); + apb_rst = devm_reset_control_get_optional_exclusive(dev, "apb"); if (IS_ERR(apb_rst)) { ret = PTR_ERR(apb_rst); - if (ret == -ENOENT) { - apb_rst = NULL; - } else { + + if (ret != -EPROBE_DEFER) dev_err(dev, "Unable to get reset control: %d\n", ret); - return ERR_PTR(ret); - } + + return ERR_PTR(ret); } if (apb_rst) {