Re: [PATCH v2 4/4] drm: rcar-du: lvds: Rename pclk enable/disable functions

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Hi Tomi,

I love your patch! Yet something to improve:

[auto build test ERROR on pinchartl-media/drm/du/next]
[also build test ERROR on linus/master v6.0-rc2 next-20220823]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Tomi-Valkeinen/drm-rcar-du-DSI-fixes/20220822-210756
base:   git://linuxtv.org/pinchartl/media.git drm/du/next
config: arm-defconfig (https://download.01.org/0day-ci/archive/20220824/202208240422.wr7amM6Y-lkp@xxxxxxxxx/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
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
        # https://github.com/intel-lab-lkp/linux/commit/2c77c282d07b279cf94254b358b048d48a8a745b
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Tomi-Valkeinen/drm-rcar-du-DSI-fixes/20220822-210756
        git checkout 2c77c282d07b279cf94254b358b048d48a8a745b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/gpu/drm/rcar-du/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

   In file included from include/linux/linkage.h:7,
                    from include/linux/kernel.h:8,
                    from include/linux/clk.h:13,
                    from drivers/gpu/drm/rcar-du/rcar_lvds.c:10:
>> drivers/gpu/drm/rcar-du/rcar_lvds.c:326:19: error: 'rcar_lvds_clk_enable' undeclared here (not in a function); did you mean 'rcar_lvds_pclk_enable'?
     326 | EXPORT_SYMBOL_GPL(rcar_lvds_clk_enable);
         |                   ^~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:98:23: note: in definition of macro '___EXPORT_SYMBOL'
      98 |         extern typeof(sym) sym;                                                 \
         |                       ^~~
   include/linux/export.h:160:41: note: in expansion of macro '__EXPORT_SYMBOL'
     160 | #define _EXPORT_SYMBOL(sym, sec)        __EXPORT_SYMBOL(sym, sec, "")
         |                                         ^~~~~~~~~~~~~~~
   include/linux/export.h:164:41: note: in expansion of macro '_EXPORT_SYMBOL'
     164 | #define EXPORT_SYMBOL_GPL(sym)          _EXPORT_SYMBOL(sym, "_gpl")
         |                                         ^~~~~~~~~~~~~~
   drivers/gpu/drm/rcar-du/rcar_lvds.c:326:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
     326 | EXPORT_SYMBOL_GPL(rcar_lvds_clk_enable);
         | ^~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/rcar-du/rcar_lvds.c:341:19: error: 'rcar_lvds_clk_disable' undeclared here (not in a function); did you mean 'rcar_lvds_pclk_disable'?
     341 | EXPORT_SYMBOL_GPL(rcar_lvds_clk_disable);
         |                   ^~~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:98:23: note: in definition of macro '___EXPORT_SYMBOL'
      98 |         extern typeof(sym) sym;                                                 \
         |                       ^~~
   include/linux/export.h:160:41: note: in expansion of macro '__EXPORT_SYMBOL'
     160 | #define _EXPORT_SYMBOL(sym, sec)        __EXPORT_SYMBOL(sym, sec, "")
         |                                         ^~~~~~~~~~~~~~~
   include/linux/export.h:164:41: note: in expansion of macro '_EXPORT_SYMBOL'
     164 | #define EXPORT_SYMBOL_GPL(sym)          _EXPORT_SYMBOL(sym, "_gpl")
         |                                         ^~~~~~~~~~~~~~
   drivers/gpu/drm/rcar-du/rcar_lvds.c:341:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
     341 | EXPORT_SYMBOL_GPL(rcar_lvds_clk_disable);
         | ^~~~~~~~~~~~~~~~~


vim +326 drivers/gpu/drm/rcar-du/rcar_lvds.c

02f2b30032c12b Laurent Pinchart 2019-01-17  303  
02f2b30032c12b Laurent Pinchart 2019-01-17  304  /* -----------------------------------------------------------------------------
02f2b30032c12b Laurent Pinchart 2019-01-17  305   * Clock - D3/E3 only
02f2b30032c12b Laurent Pinchart 2019-01-17  306   */
02f2b30032c12b Laurent Pinchart 2019-01-17  307  
2c77c282d07b27 Tomi Valkeinen   2022-08-22  308  int rcar_lvds_pclk_enable(struct drm_bridge *bridge, unsigned long freq)
02f2b30032c12b Laurent Pinchart 2019-01-17  309  {
02f2b30032c12b Laurent Pinchart 2019-01-17  310  	struct rcar_lvds *lvds = bridge_to_rcar_lvds(bridge);
02f2b30032c12b Laurent Pinchart 2019-01-17  311  	int ret;
02f2b30032c12b Laurent Pinchart 2019-01-17  312  
02f2b30032c12b Laurent Pinchart 2019-01-17  313  	if (WARN_ON(!(lvds->info->quirks & RCAR_LVDS_QUIRK_EXT_PLL)))
02f2b30032c12b Laurent Pinchart 2019-01-17  314  		return -ENODEV;
02f2b30032c12b Laurent Pinchart 2019-01-17  315  
02f2b30032c12b Laurent Pinchart 2019-01-17  316  	dev_dbg(lvds->dev, "enabling LVDS PLL, freq=%luHz\n", freq);
02f2b30032c12b Laurent Pinchart 2019-01-17  317  
02f2b30032c12b Laurent Pinchart 2019-01-17  318  	ret = clk_prepare_enable(lvds->clocks.mod);
02f2b30032c12b Laurent Pinchart 2019-01-17  319  	if (ret < 0)
02f2b30032c12b Laurent Pinchart 2019-01-17  320  		return ret;
02f2b30032c12b Laurent Pinchart 2019-01-17  321  
02f2b30032c12b Laurent Pinchart 2019-01-17  322  	__rcar_lvds_pll_setup_d3_e3(lvds, freq, true);
02f2b30032c12b Laurent Pinchart 2019-01-17  323  
02f2b30032c12b Laurent Pinchart 2019-01-17  324  	return 0;
02f2b30032c12b Laurent Pinchart 2019-01-17  325  }
02f2b30032c12b Laurent Pinchart 2019-01-17 @326  EXPORT_SYMBOL_GPL(rcar_lvds_clk_enable);
02f2b30032c12b Laurent Pinchart 2019-01-17  327  
2c77c282d07b27 Tomi Valkeinen   2022-08-22  328  void rcar_lvds_pclk_disable(struct drm_bridge *bridge)
02f2b30032c12b Laurent Pinchart 2019-01-17  329  {
02f2b30032c12b Laurent Pinchart 2019-01-17  330  	struct rcar_lvds *lvds = bridge_to_rcar_lvds(bridge);
02f2b30032c12b Laurent Pinchart 2019-01-17  331  
02f2b30032c12b Laurent Pinchart 2019-01-17  332  	if (WARN_ON(!(lvds->info->quirks & RCAR_LVDS_QUIRK_EXT_PLL)))
02f2b30032c12b Laurent Pinchart 2019-01-17  333  		return;
02f2b30032c12b Laurent Pinchart 2019-01-17  334  
02f2b30032c12b Laurent Pinchart 2019-01-17  335  	dev_dbg(lvds->dev, "disabling LVDS PLL\n");
02f2b30032c12b Laurent Pinchart 2019-01-17  336  
02f2b30032c12b Laurent Pinchart 2019-01-17  337  	rcar_lvds_write(lvds, LVDPLLCR, 0);
02f2b30032c12b Laurent Pinchart 2019-01-17  338  
02f2b30032c12b Laurent Pinchart 2019-01-17  339  	clk_disable_unprepare(lvds->clocks.mod);
02f2b30032c12b Laurent Pinchart 2019-01-17  340  }
02f2b30032c12b Laurent Pinchart 2019-01-17 @341  EXPORT_SYMBOL_GPL(rcar_lvds_clk_disable);
02f2b30032c12b Laurent Pinchart 2019-01-17  342  

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



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