From: Andy Yan <andy.yan@rock-chips.com> To: airlied@linux.ie, heiko@sntech.de, fabio.estevam@freescale.com, rmk+kernel@arm.linux.org.uk Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Grant Likely <grant.likely@linaro.org>, Rob Herring <robh+dt@kernel.org>, Philipp Zabel <p.zabel@pengutronix.de>, Shawn Guo <shawn.guo@linaro.org>, Andy yan <andy.yan@rock-chips.com>, Josh Boyer <jwboyer@redhat.com>, Sean Paul <seanpaul@chromium.org>, Inki Dae <inki.dae@samsung.com>, Dave Airlie <airlied@redhat.com>, Arnd Bergmann <arnd@arndb.de>, Lucas Stach <l.stach@pengutronix.de>, Zubair.Kakakhel@imgtec.com, djkurtz@google.com, ykk@rock-chips.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, devel@driverdev.osuosl.org, devicetree@vger.kernel.org, linux-rockchip@lists.infradead.org, jay.xu@rock-chips.com, Pawel Moll <pawel.moll@arm.com>, mark.yao@rock-chips.com, Mark Rutland <mark.rutland@arm.com>, Ian Campbell <ijc+devicetree@hellion.org.uk>, Kumar Gala <galak@codeaurora.org> Subject: [PATCH v9 2/9] staging: imx-drm: imx-hdmi: return defer if can't get ddc i2c adapter Date: Thu, 13 Nov 2014 20:54:44 +0800 [thread overview] Message-ID: <1415883284-3425-1-git-send-email-andy.yan@rock-chips.com> (raw) In-Reply-To: <1415793593-5075-1-git-send-email-andy.yan@rock-chips.com> drm driver may probe before the i2c bus, so the driver should defer probing until it is available Signed-off-by: Andy Yan <andy.yan@rock-chips.com> --- Changes in v9: None Changes in v8: None Changes in v7: None Changes in v6: None Changes in v5: None Changes in v4: - defer probe ddc i2c adapter Changes in v3: None Changes in v2: None drivers/staging/imx-drm/imx-hdmi.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/staging/imx-drm/imx-hdmi.c index 79daec4..c2b035a 100644 --- a/drivers/staging/imx-drm/imx-hdmi.c +++ b/drivers/staging/imx-drm/imx-hdmi.c @@ -1611,8 +1611,11 @@ static int imx_hdmi_bind(struct device *dev, struct device *master, void *data) ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0); if (ddc_node) { hdmi->ddc = of_find_i2c_adapter_by_node(ddc_node); - if (!hdmi->ddc) + if (!hdmi->ddc) { dev_dbg(hdmi->dev, "failed to read ddc node\n"); + of_node_put(ddc_node); + return -EPROBE_DEFER; + } of_node_put(ddc_node); } else { -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: Andy Yan <andy.yan-TNX95d0MmH7DzftRWevZcw@public.gmane.org> To: airlied-cv59FeDIM0c@public.gmane.org, heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org, fabio.estevam-KZfg59tc24xl57MIdRCFDg@public.gmane.org, rmk+kernel-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org Cc: Greg Kroah-Hartman <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>, Grant Likely <grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Philipp Zabel <p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>, Shawn Guo <shawn.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, Andy yan <andy.yan-TNX95d0MmH7DzftRWevZcw@public.gmane.org>, Josh Boyer <jwboyer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Sean Paul <seanpaul-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>, Inki Dae <inki.dae-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>, Dave Airlie <airlied-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>, Lucas Stach <l.stach-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>, Zubair.Kakakhel-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org, djkurtz-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, ykk-TNX95d0MmH7DzftRWevZcw@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, devel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, jay.xu-TNX95d0MmH7DzftRWevZcw@public.gmane.org, Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>, mark.yao-TNX95d0MmH7DzftRWevZcw@public.gmane.org, Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>, Ian Campbell <ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>, Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org> Subject: [PATCH v9 2/9] staging: imx-drm: imx-hdmi: return defer if can't get ddc i2c adapter Date: Thu, 13 Nov 2014 20:54:44 +0800 [thread overview] Message-ID: <1415883284-3425-1-git-send-email-andy.yan@rock-chips.com> (raw) In-Reply-To: <1415793593-5075-1-git-send-email-andy.yan-TNX95d0MmH7DzftRWevZcw@public.gmane.org> drm driver may probe before the i2c bus, so the driver should defer probing until it is available Signed-off-by: Andy Yan <andy.yan-TNX95d0MmH7DzftRWevZcw@public.gmane.org> --- Changes in v9: None Changes in v8: None Changes in v7: None Changes in v6: None Changes in v5: None Changes in v4: - defer probe ddc i2c adapter Changes in v3: None Changes in v2: None drivers/staging/imx-drm/imx-hdmi.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/staging/imx-drm/imx-hdmi.c index 79daec4..c2b035a 100644 --- a/drivers/staging/imx-drm/imx-hdmi.c +++ b/drivers/staging/imx-drm/imx-hdmi.c @@ -1611,8 +1611,11 @@ static int imx_hdmi_bind(struct device *dev, struct device *master, void *data) ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0); if (ddc_node) { hdmi->ddc = of_find_i2c_adapter_by_node(ddc_node); - if (!hdmi->ddc) + if (!hdmi->ddc) { dev_dbg(hdmi->dev, "failed to read ddc node\n"); + of_node_put(ddc_node); + return -EPROBE_DEFER; + } of_node_put(ddc_node); } else { -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2014-11-13 12:54 UTC|newest] Thread overview: 165+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-11-12 11:59 [PATCH v8 0/9] dw-hdmi: convert imx hdmi to bridge/dw_hdmi Andy Yan 2014-11-12 11:59 ` Andy Yan 2014-11-12 12:01 ` [PATCH v8 1/9] staging: imx-drm: imx-hdmi: make checkpatch happy Andy Yan 2014-11-12 12:01 ` Andy Yan 2014-11-12 12:01 ` [PATCH v8 2/9] staging: imx-drm: imx-hdmi: return defer if can't get ddc i2c adapter Andy Yan 2014-11-12 12:01 ` Andy Yan 2014-11-12 12:02 ` [PATCH v8 3/9] staging: imx-drm: imx-hdmi: split imx soc specific code from imx-hdmi Andy Yan 2014-11-12 12:02 ` Andy Yan 2014-11-12 12:03 ` [PATCH v8 4/9] staging: imx-drm: imx-hdmi: move imx-hdmi to bridge/dw_hdmi Andy Yan 2014-11-12 12:03 ` Andy Yan 2014-11-12 12:03 ` [PATCH v8 5/9] dt-bindings: add document for dw_hdmi Andy Yan 2014-11-12 12:03 ` Andy Yan 2014-11-12 12:03 ` [PATCH v8 6/9] drm: bridge/dw_hdmi: add support for multi byte register width access Andy Yan 2014-11-12 12:03 ` Andy Yan 2014-11-12 12:04 ` [PATCH v8 7/9] drm: bridge/dw_hdmi: convert dw-hdmi to drm_bridge mode Andy Yan 2014-11-12 12:04 ` Andy Yan 2014-11-12 12:05 ` [PATCH v8 8/9] dt-bindings: Add documentation for rockchip dw hdmi Andy Yan 2014-11-12 12:05 ` Andy Yan 2014-11-12 12:05 ` [PATCH v8 9/9] drm: bridge/dw_hdmi: add rockchip rk3288 support Andy Yan 2014-11-12 12:05 ` Andy Yan 2014-11-13 12:52 ` [PATCH v9 0/9] dw-hdmi: convert imx hdmi to bridge/dw_hdmi Andy Yan 2014-11-13 12:52 ` Andy Yan 2014-11-14 3:09 ` [PATCH v10 0/11] " Andy Yan 2014-11-14 3:09 ` Andy Yan 2014-11-14 3:24 ` [PATCH v10 01/11] staging: imx-drm: imx-hdmi: make checkpatch happy Andy Yan 2014-11-14 3:24 ` Andy Yan 2014-11-14 3:25 ` [PATCH v10 02/11] staging: imx-drm: imx-hdmi: return defer if can't get ddc i2c adapter Andy Yan 2014-11-14 3:25 ` Andy Yan 2014-11-14 3:25 ` [PATCH v10 03/11] staging: imx-drm: imx-hdmi: split imx soc specific code from imx-hdmi Andy Yan 2014-11-14 3:25 ` Andy Yan 2014-11-14 3:26 ` [PATCH v10 04/11] staging: imx-drm: imx-hdmi: move imx-hdmi to bridge/dw_hdmi Andy Yan 2014-11-14 3:26 ` Andy Yan 2014-11-14 3:27 ` [PATCH v10 05/11] drm: bridge/dw_hdmi:split some phy configuration to platform driver Andy Yan 2014-11-14 3:27 ` Andy Yan 2014-11-14 10:19 ` Zubair Lutfullah Kakakhel 2014-11-14 10:19 ` Zubair Lutfullah Kakakhel 2014-11-14 10:53 ` Andy Yan 2014-11-14 10:53 ` Andy Yan 2014-11-14 10:55 ` Zubair Lutfullah Kakakhel 2014-11-14 10:55 ` Zubair Lutfullah Kakakhel 2014-11-14 11:08 ` Andy Yan 2014-11-14 11:08 ` Andy Yan 2014-11-14 11:13 ` Zubair Lutfullah Kakakhel 2014-11-14 11:13 ` Zubair Lutfullah Kakakhel 2014-11-15 10:07 ` Daniel Kurtz 2014-11-15 10:07 ` Daniel Kurtz 2014-11-15 10:12 ` Russell King - ARM Linux 2014-11-15 10:12 ` Russell King - ARM Linux 2014-11-15 10:54 ` Russell King - ARM Linux 2014-11-15 10:54 ` Russell King - ARM Linux 2014-11-14 3:27 ` [PATCH v10 06/11] drm: bridge/dw_hdmi: clear i2cmphy_stat0 reg in hdmi_phy_wait_i2c_done Andy Yan 2014-11-14 3:27 ` Andy Yan 2014-11-14 3:28 ` [PATCH v10 07/11] dt-bindings: add document for dw_hdmi Andy Yan 2014-11-14 3:28 ` Andy Yan 2014-11-14 3:29 ` [PATCH v10 08/11] drm: bridge/dw_hdmi: add support for multi byte register width access Andy Yan 2014-11-14 3:29 ` Andy Yan 2014-11-14 3:29 ` [PATCH v10 09/11] drm: bridge/dw_hdmi: convert dw-hdmi to drm_bridge mode Andy Yan 2014-11-14 3:29 ` Andy Yan 2014-11-14 3:30 ` [PATCH v10 10/11] dt-bindings: Add documentation for rockchip dw hdmi Andy Yan 2014-11-14 3:30 ` Andy Yan 2014-11-14 3:31 ` [PATCH v10 11/11] drm: bridge/dw_hdmi: add rockchip rk3288 support Andy Yan 2014-11-14 3:31 ` Andy Yan 2014-11-14 10:23 ` Zubair Lutfullah Kakakhel 2014-11-14 10:23 ` Zubair Lutfullah Kakakhel 2014-11-14 10:37 ` Andy Yan 2014-11-14 10:37 ` Andy Yan 2014-11-14 10:53 ` Zubair Lutfullah Kakakhel 2014-11-14 10:53 ` Zubair Lutfullah Kakakhel 2014-11-14 11:13 ` Andy Yan 2014-11-14 11:13 ` Andy Yan 2014-11-14 11:16 ` Zubair Lutfullah Kakakhel 2014-11-14 11:16 ` Zubair Lutfullah Kakakhel 2014-11-14 11:21 ` Andy Yan 2014-11-14 11:21 ` Andy Yan 2014-11-14 13:37 ` [PATCH v11 0/12] dw-hdmi: convert imx hdmi to bridge/dw_hdmi Andy Yan 2014-11-14 13:37 ` Andy Yan 2014-11-14 13:38 ` [PATCH v11 01/12] staging: imx-drm: imx-hdmi: make checkpatch happy Andy Yan 2014-11-14 13:38 ` Andy Yan 2014-11-15 5:38 ` Daniel Kurtz 2014-11-15 5:38 ` Daniel Kurtz 2014-11-14 13:39 ` [PATCH v11 02/12] staging: imx-drm: imx-hdmi: return defer if can't get ddc i2c adapter Andy Yan 2014-11-14 13:39 ` Andy Yan 2014-11-15 5:41 ` Daniel Kurtz 2014-11-15 5:41 ` Daniel Kurtz 2014-11-17 1:35 ` Andy Yan 2014-11-17 1:35 ` Andy Yan 2014-11-14 13:39 ` [PATCH v11 03/12] staging: imx-drm: imx-hdmi: split imx soc specific code from imx-hdmi Andy Yan 2014-11-14 13:39 ` Andy Yan 2014-11-14 13:40 ` [PATCH v11 04/12] staging: imx-drm: imx-hdmi: move imx-hdmi to bridge/dw_hdmi Andy Yan 2014-11-14 13:40 ` Andy Yan 2014-11-14 13:41 ` [PATCH v11 05/12] drm: bridge/dw_hdmi: convert dw-hdmi to drm_bridge mode Andy Yan 2014-11-14 13:41 ` Andy Yan 2014-11-14 13:42 ` [PATCH v11 06/12] dt-bindings: add document for dw_hdmi Andy Yan 2014-11-14 13:42 ` Andy Yan 2014-11-14 13:43 ` [PATCH v11 07/12] drm: bridge/dw_hdmi: add support for multi-byte register width access Andy Yan 2014-11-14 13:43 ` Andy Yan 2014-11-14 13:45 ` [PATCH v11 08/12] drm: bridge/dw_hdmi: add mode_valid support Andy Yan 2014-11-14 13:45 ` Andy Yan 2014-11-14 13:45 ` [PATCH v11 09/12] drm: bridge/dw_hdmi: clear i2cmphy_stat0 reg in hdmi_phy_wait_i2c_done Andy Yan 2014-11-14 13:45 ` Andy Yan 2014-11-14 13:46 ` [PATCH v11 10/12] drm: bridge/dw_hdmi: add function dw_hdmi_phy_enable_spare Andy Yan 2014-11-14 13:46 ` Andy Yan 2014-11-14 13:47 ` [PATCH v11 11/12] dt-bindings: Add documentation for rockchip dw hdmi Andy Yan 2014-11-14 13:47 ` Andy Yan 2014-11-14 13:48 ` [PATCH v11 12/12] drm: bridge/dw_hdmi: add rockchip rk3288 support Andy Yan 2014-11-14 13:48 ` Andy Yan 2014-11-15 5:42 ` [PATCH v11 0/12] dw-hdmi: convert imx hdmi to bridge/dw_hdmi Daniel Kurtz 2014-11-15 5:46 ` Daniel Kurtz 2014-11-15 5:46 ` Daniel Kurtz 2014-11-13 12:53 ` [PATCH v9 1/9] staging: imx-drm: imx-hdmi: make checkpatch happy Andy Yan 2014-11-13 12:53 ` Andy Yan 2014-11-13 12:54 ` Andy Yan [this message] 2014-11-13 12:54 ` [PATCH v9 2/9] staging: imx-drm: imx-hdmi: return defer if can't get ddc i2c adapter Andy Yan 2014-11-13 12:55 ` [PATCH v9 3/9] staging: imx-drm: imx-hdmi: split imx soc specific code from imx-hdmi Andy Yan 2014-11-13 12:55 ` Andy Yan 2014-11-13 12:55 ` [PATCH v9 4/9] staging: imx-drm: imx-hdmi: move imx-hdmi to bridge/dw_hdmi Andy Yan 2014-11-13 12:55 ` Andy Yan 2014-11-13 12:55 ` [PATCH v9 5/9] dt-bindings: add document for dw_hdmi Andy Yan 2014-11-13 12:55 ` Andy Yan 2014-11-13 12:55 ` [PATCH v9 6/9] drm: bridge/dw_hdmi: add support for multi byte register width access Andy Yan 2014-11-13 12:55 ` Andy Yan 2014-11-13 12:56 ` [PATCH v9 7/9] drm: bridge/dw_hdmi: convert dw-hdmi to drm_bridge mode Andy Yan 2014-11-13 12:56 ` Andy Yan 2014-11-13 12:56 ` [PATCH v9 8/9] dt-bindings: Add documentation for rockchip dw hdmi Andy Yan 2014-11-13 12:56 ` Andy Yan 2014-11-13 12:57 ` [PATCH v9 9/9] drm: bridge/dw_hdmi: add rockchip rk3288 support Andy Yan 2014-11-13 12:57 ` Andy Yan 2014-11-13 13:09 ` Zubair Lutfullah Kakakhel 2014-11-13 13:09 ` Zubair Lutfullah Kakakhel 2014-11-13 13:38 ` Andy Yan 2014-11-13 13:38 ` Andy Yan 2014-11-17 10:53 ` [PATCH v12 0/11] dw-hdmi: convert imx hdmi to bridge/dw_hdmi Andy Yan 2014-11-17 10:53 ` Andy Yan 2014-11-24 14:17 ` Andy Yan 2014-11-24 14:17 ` Andy Yan 2014-11-24 14:22 ` Zubair Lutfullah Kakakhel 2014-11-24 14:22 ` Zubair Lutfullah Kakakhel 2014-11-24 14:35 ` Andy Yan 2014-11-24 14:35 ` Andy Yan 2014-11-26 2:14 ` Fabio Estevam 2014-11-26 2:14 ` Fabio Estevam 2014-11-26 2:29 ` Andy Yan 2014-11-26 2:29 ` Andy Yan 2014-11-17 10:54 ` [PATCH v12 01/11] staging: imx-drm: imx-hdmi: make checkpatch happy Andy Yan 2014-11-17 10:54 ` Andy Yan 2014-11-17 10:55 ` [PATCH v12 02/11] staging: imx-drm: imx-hdmi: return defer if can't get ddc i2c adapter Andy Yan 2014-11-17 10:55 ` Andy Yan 2014-11-17 10:55 ` [PATCH v12 03/11] staging: imx-drm: imx-hdmi: convert imx-hdmi to drm_bridge mode Andy Yan 2014-11-17 10:55 ` Andy Yan 2014-11-17 10:56 ` [PATCH v12 04/11] staging: imx-drm: imx-hdmi: move imx-hdmi to bridge/dw_hdmi Andy Yan 2014-11-17 10:56 ` Andy Yan 2014-11-17 10:56 ` [PATCH v12 05/11] dt-bindings: add document for dw_hdmi Andy Yan 2014-11-17 10:56 ` Andy Yan 2014-11-17 10:56 ` [PATCH v12 06/11] drm: bridge/dw_hdmi: add support for multi-byte register width access Andy Yan 2014-11-17 10:56 ` Andy Yan 2014-11-17 10:57 ` [PATCH v12 07/11] drm: bridge/dw_hdmi: add mode_valid support Andy Yan 2014-11-17 10:57 ` Andy Yan 2014-11-17 10:57 ` [PATCH v12 08/11] drm: bridge/dw_hdmi: clear i2cmphy_stat0 reg in hdmi_phy_wait_i2c_done Andy Yan 2014-11-17 10:57 ` Andy Yan 2014-11-17 10:58 ` [PATCH v12 09/11] drm: bridge/dw_hdmi: add function dw_hdmi_phy_enable_spare Andy Yan 2014-11-17 10:58 ` Andy Yan 2014-11-17 10:58 ` [PATCH v12 10/11] dt-bindings: Add documentation for rockchip dw hdmi Andy Yan 2014-11-17 10:58 ` Andy Yan 2014-11-17 10:59 ` [PATCH v12 11/11] drm: bridge/dw_hdmi: add rockchip rk3288 support Andy Yan 2014-11-17 10:59 ` Andy Yan
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