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Message-Id: <1519295846-11612-1-git-send-email-jacopo+renesas@jmondi.org>
Date: Thu, 22 Feb 2018 11:37:16 +0100
From: Jacopo Mondi <jacopo+renesas@...ndi.org>
To: laurent.pinchart@...asonboard.com, magnus.damm@...il.com,
geert@...der.be, hverkuil@...all.nl, mchehab@...nel.org,
festevam@...il.com, sakari.ailus@....fi, robh+dt@...nel.org,
mark.rutland@....com, pombredanne@...b.com
Cc: Jacopo Mondi <jacopo+renesas@...ndi.org>,
linux-renesas-soc@...r.kernel.org, linux-media@...r.kernel.org,
linux-sh@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v11 00/10] Renesas Capture Engine Unit (CEU) V4L2 driver
Hello,
Hans reported he sees a few warnings when compiling CEU driver with gcc7.3.0
I have silenced them, and the one reported in "probe" was actually a bug.
That's the diff from v10:
diff --git a/drivers/media/platform/renesas-ceu.c b/drivers/media/platform/renesas-ceu.c
index 6624fba..cfabe1a 100644
--- a/drivers/media/platform/renesas-ceu.c
+++ b/drivers/media/platform/renesas-ceu.c
@@ -412,6 +412,9 @@ static int ceu_hw_config(struct ceu_device *ceudev)
cfzsr = (pix->height << 16) | pix->width;
cdwdr = pix->width;
break;
+
+ default:
+ return -EINVAL;
}
camcr |= mbus_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW ? 1 << 1 : 0;
@@ -1568,8 +1571,10 @@ static int ceu_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ceudev->base = devm_ioremap_resource(dev, res);
- if (IS_ERR(ceudev->base))
+ if (IS_ERR(ceudev->base)) {
+ ret = PTR_ERR(ceudev->base);
goto error_free_ceudev;
+ }
ret = platform_get_irq(pdev, 0);
if (ret < 0) {
Now that I've switch to a new compiler I see two more warnings, which are to be
ignored imo, as this behaviour is expected:
../drivers/media/platform/renesas-ceu.c: In function ‘ceu_hw_config’:
../drivers/media/platform/renesas-ceu.c:392:9: warning: this statement may fall through [-Wimplicit-fallthrough=]
cdocr |= CEU_CDOCR_NO_DOWSAMPLE;
../drivers/media/platform/renesas-ceu.c:393:2: note: here
case V4L2_PIX_FMT_NV12:
^~~~
../drivers/media/platform/renesas-ceu.c:405:9: warning: this statement may fall through [-Wimplicit-fallthrough=]
cdocr |= CEU_CDOCR_NO_DOWSAMPLE;
../drivers/media/platform/renesas-ceu.c:406:2: note: here
case V4L2_PIX_FMT_NV21:
^~~~
MAINTAINERS file update has been sent as separate series, and I guess Hans you
can now send a pull request for this driver!
Cheers!
j
v10->v11:
- Silence two compiler warnings reported by Hans on CEU driver v10
v9->v10:
- Close 0-days warning on ov772x frame interval
- Set default format on CEU after input change
- Drop ov7670 mbus frame format set not to block this series while topic
gets clarified
v8->v9:
- Address Laurent's review of ov772x frame rate
- Address Sergei comment on ceu node name
v7->v8:
- Calculate PLL divider/multiplier and do not use static tables
- Change RZ/A1-H to RZ/A1H (same for L) in bindings documentation
- Use rounded clock rate in Migo-R board code as SH clk_set_clk()
implementation does not perform rounding
- Set ycbcr_enc and other fields of v4l2_mbus_format for ov772x as patch
[11/11] does for ov7670
v6->v7:
- Add patch to handle ycbr_enc and other fields of v4l2_mbus_format for ov7670
- Add patch to handle frame interval for ov772x
- Rebased on Hans' media-tree/parm branch with v4l2_g/s_parm_cap
- Drop const modifier in CEU releated fields of Migo-R setup.c board file
to silence complier warnings.
v5->v6:
- Add Hans' Acked-by to most patches
- Fix a bad change in ov772x get_selection
- Add .buf_prepare callack to CEU and verify plane sizes there
- Remove VB2_USERPTR from supported io_modes in CEU driver
- Remove read() fops in CEU driver
v4->v5:
- Added Rob's and Laurent's Reviewed-by tag to DT bindings
- Change CEU driver module license to "GPL v2" to match SPDX identifier as
suggested by Philippe Ombredanne
- Make struct ceu_data static as suggested by Laurent and add his
Reviewed-by to CEU driver.
v3->v4:
- Drop generic fallback compatible string "renesas,ceu"
- Addressed Laurent's comments on [3/9]
- Fix error messages on irq get/request
- Do not leak ceudev if irq_get fails
- Make irq_mask a const field
v2->v3:
- Improved DT bindings removing standard properties (pinctrl- ones and
remote-endpoint) not specific to this driver and improved description of
compatible strings
- Remove ov772x's xlkc_rate property and set clock rate in Migo-R board file
- Made 'xclk' clock private to ov772x driver in Migo-R board file
- Change 'rstb' GPIO active output level and changed ov772x and tw9910 drivers
accordingly as suggested by Fabio
- Minor changes in CEU driver to address Laurent's comments
- Moved Migo-R setup patch to the end of the series to silence 0-day bot
- Renamed tw9910 clock to 'xti' as per video decoder manual
- Changed all SPDX identifiers to GPL-2.0 from previous GPL-2.0+
v1->v2:
- DT
-- Addressed Geert's comments and added clocks for CEU to mstp6 clock source
-- Specified supported generic video iterfaces properties in dt-bindings and
simplified example
- CEU driver
-- Re-worked interrupt handler, interrupt management, reset(*) and capture
start operation
-- Re-worked querycap/enum_input/enum_frameintervals to fix some
v4l2_compliance failures
-- Removed soc_camera legacy operations g/s_mbus_format
-- Update to new notifier implementation
-- Fixed several comments from Hans, Laurent and Sakari
- Migo-R
-- Register clocks and gpios for sensor drivers in Migo-R setup
-- Updated sensors (tw9910 and ov772x) drivers headers and drivers to close
remarks from Hans and Laurent:
--- Removed platform callbacks and handle clocks and gpios from sensor drivers
--- Remove g/s_mbus_config operations
Jacopo Mondi (10):
dt-bindings: media: Add Renesas CEU bindings
include: media: Add Renesas CEU driver interface
media: platform: Add Renesas CEU driver
ARM: dts: r7s72100: Add Capture Engine Unit (CEU)
media: i2c: Copy ov772x soc_camera sensor driver
media: i2c: ov772x: Remove soc_camera dependencies
media: i2c: ov772x: Support frame interval handling
media: i2c: Copy tw9910 soc_camera sensor driver
media: i2c: tw9910: Remove soc_camera dependencies
arch: sh: migor: Use new renesas-ceu camera driver
.../devicetree/bindings/media/renesas,ceu.txt | 81 +
arch/arm/boot/dts/r7s72100.dtsi | 15 +-
arch/sh/boards/mach-migor/setup.c | 225 ++-
arch/sh/kernel/cpu/sh4a/clock-sh7722.c | 2 +-
drivers/media/i2c/Kconfig | 20 +
drivers/media/i2c/Makefile | 2 +
drivers/media/i2c/ov772x.c | 1365 ++++++++++++++++
drivers/media/i2c/tw9910.c | 1039 ++++++++++++
drivers/media/platform/Kconfig | 9 +
drivers/media/platform/Makefile | 1 +
drivers/media/platform/renesas-ceu.c | 1675 ++++++++++++++++++++
include/media/drv-intf/renesas-ceu.h | 26 +
include/media/i2c/ov772x.h | 6 +-
include/media/i2c/tw9910.h | 9 +
14 files changed, 4344 insertions(+), 131 deletions(-)
create mode 100644 Documentation/devicetree/bindings/media/renesas,ceu.txt
create mode 100644 drivers/media/i2c/ov772x.c
create mode 100644 drivers/media/i2c/tw9910.c
create mode 100644 drivers/media/platform/renesas-ceu.c
create mode 100644 include/media/drv-intf/renesas-ceu.h
--
2.7.4
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