Re: [PATCH] drm/bridge/synopsys: dsi: allows LP commands in video mode

From: kernel test robot <lkp@intel.com>
To: Yannick Fertre <yannick.fertre@st.com>,
	Philippe Cornu <philippe.cornu@st.com>,
	Benjamin Gaignard <benjamin.gaignard@st.com>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Alexandre Torgue <alexandre.torgue@st.com>,
	dri-devel@lists.freedesktop.org,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org
Cc: kbuild-all@lists.01.org
Subject: Re: [PATCH] drm/bridge/synopsys: dsi: allows LP commands in video mode
Date: Thu, 2 Jul 2020 06:37:41 +0800	[thread overview]
Message-ID: <202007020601.Xmh7WDZs%lkp@intel.com> (raw)
In-Reply-To: <20200701151316.18524-1-yannick.fertre@st.com>

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Hi Yannick,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.8-rc3 next-20200701]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use  as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Yannick-Fertre/drm-bridge-synopsys-dsi-allows-LP-commands-in-video-mode/20200701-231547
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 7c30b859a947535f2213277e827d7ac7dcff9c84
config: arm64-allyesconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c: In function 'dw_mipi_message_config':
>> drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c:374:10: error: 'ENABLE_LOW_POWER_CMD' undeclared (first use in this function); did you mean 'ENABLE_LOW_POWER_MASK'?
     374 |   val |= ENABLE_LOW_POWER_CMD;
         |          ^~~~~~~~~~~~~~~~~~~~
         |          ENABLE_LOW_POWER_MASK
   drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c:374:10: note: each undeclared identifier is reported only once for each function it appears in

vim +374 drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c

   357	
   358	static void dw_mipi_message_config(struct dw_mipi_dsi *dsi,
   359					   const struct mipi_dsi_msg *msg)
   360	{
   361		bool lpm = msg->flags & MIPI_DSI_MSG_USE_LPM;
   362		u32 val = 0;
   363	
   364		if (msg->flags & MIPI_DSI_MSG_REQ_ACK)
   365			val |= ACK_RQST_EN;
   366		if (lpm)
   367			val |= CMD_MODE_ALL_LP;
   368	
   369		dsi_write(dsi, DSI_LPCLK_CTRL, lpm ? 0 : PHY_TXREQUESTCLKHS);
   370		dsi_write(dsi, DSI_CMD_MODE_CFG, val);
   371	
   372		val = dsi_read(dsi, DSI_VID_MODE_CFG);
   373		if (lpm)
 > 374			val |= ENABLE_LOW_POWER_CMD;
   375		else
   376			val &= ~ENABLE_LOW_POWER_CMD;
   377		dsi_write(dsi, DSI_VID_MODE_CFG, val);
   378	}
   379	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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