From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2521B101C0 for ; Mon, 15 May 2023 17:52:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 327B5C433D2; Mon, 15 May 2023 17:52:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1684173132; bh=cHaRgKr1cTYkTuLvNua06aZMmForgpY/yKvtujEYF6c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oA++8Nn90AJZT2c6zm6mvS/UA4dVr32nHWpVMLo/eeY0/VZRCzL8fkMHnbw1fscXW jhl8PWqLZE8wYwg1DOjyzqHVPno7CqYkkWAnEJfBCDYl6Su5WF6i1l3pAbncwvtE2S Zf5FHMQ5qJY3D6jug4KnHQdmMAkwsZyL3PqtHxsI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, James Cowgill , Neil Armstrong Subject: [PATCH 5.10 350/381] drm/panel: otm8009a: Set backlight parent to panel device Date: Mon, 15 May 2023 18:30:01 +0200 Message-Id: <20230515161752.676520885@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230515161736.775969473@linuxfoundation.org> References: <20230515161736.775969473@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: James Cowgill commit ab4f869fba6119997f7630d600049762a2b014fa upstream. This is the logical place to put the backlight device, and it also fixes a kernel crash if the MIPI host is removed. Previously the backlight device would be unregistered twice when this happened - once as a child of the MIPI host through `mipi_dsi_host_unregister`, and once when the panel device is destroyed. Fixes: 12a6cbd4f3f1 ("drm/panel: otm8009a: Use new backlight API") Signed-off-by: James Cowgill Cc: stable@vger.kernel.org Reviewed-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20230412173450.199592-1-james.cowgill@blaize.com Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/panel/panel-orisetech-otm8009a.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c +++ b/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c @@ -458,7 +458,7 @@ static int otm8009a_probe(struct mipi_ds DRM_MODE_CONNECTOR_DSI); ctx->bl_dev = devm_backlight_device_register(dev, dev_name(dev), - dsi->host->dev, ctx, + dev, ctx, &otm8009a_backlight_ops, NULL); if (IS_ERR(ctx->bl_dev)) {