Re: [PATCH] clk: qcom: clk-alpha-pll: Don't reconfigure running Trion

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Hi Bjorn,

I love your patch! Yet something to improve:

[auto build test ERROR on clk/clk-next]
[also build test ERROR on v5.16-rc2 next-20211123]
[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]

url:    https://github.com/0day-ci/linux/commits/Bjorn-Andersson/clk-qcom-clk-alpha-pll-Don-t-reconfigure-running-Trion/20211124-001628
base:   https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next
config: riscv-randconfig-r042-20211123 (https://download.01.org/0day-ci/archive/20211124/202111240901.R3Fzm2O3-lkp@xxxxxxxxx/config.gz)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 49e3838145dff1ec91c2e67a2cb562775c8d2a08)
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
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        # https://github.com/0day-ci/linux/commit/1c6539db17125d4d4eaf17c4071063fe8a7e2ca6
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Bjorn-Andersson/clk-qcom-clk-alpha-pll-Don-t-reconfigure-running-Trion/20211124-001628
        git checkout 1c6539db17125d4d4eaf17c4071063fe8a7e2ca6
        # save the config file to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv 

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

All errors (new ones prefixed by >>):

>> drivers/clk/qcom/clk-alpha-pll.c:1437:3: error: implicit declaration of function 'pr_dbg' [-Werror,-Wimplicit-function-declaration]
                   pr_dbg("Trion PLL is already enabled, skipping configuration\n");
                   ^
   1 error generated.


vim +/pr_dbg +1437 drivers/clk/qcom/clk-alpha-pll.c

  1421	
  1422	/**
  1423	 * clk_lucid_pll_configure - configure the lucid pll
  1424	 *
  1425	 * @pll: clk alpha pll
  1426	 * @regmap: register map
  1427	 * @config: configuration to apply for pll
  1428	 */
  1429	void clk_trion_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
  1430				     const struct alpha_pll_config *config)
  1431	{
  1432		/*
  1433		 * If the bootloader left the PLL enabled it's likely that there are
  1434		 * RCGs that will lock up if we disable the PLL below.
  1435		 */
  1436		if (trion_pll_is_enabled(pll, regmap)) {
> 1437			pr_dbg("Trion PLL is already enabled, skipping configuration\n");
  1438			return;
  1439		}
  1440	
  1441		clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l);
  1442		regmap_write(regmap, PLL_CAL_L_VAL(pll), TRION_PLL_CAL_VAL);
  1443		clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha);
  1444		clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll),
  1445					     config->config_ctl_val);
  1446		clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll),
  1447					     config->config_ctl_hi_val);
  1448		clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll),
  1449					     config->config_ctl_hi1_val);
  1450		clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll),
  1451						config->user_ctl_val);
  1452		clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll),
  1453						config->user_ctl_hi_val);
  1454		clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U1(pll),
  1455						config->user_ctl_hi1_val);
  1456		clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll),
  1457						config->test_ctl_val);
  1458		clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll),
  1459						config->test_ctl_hi_val);
  1460		clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll),
  1461						config->test_ctl_hi1_val);
  1462	
  1463		regmap_update_bits(regmap, PLL_MODE(pll), PLL_UPDATE_BYPASS,
  1464				   PLL_UPDATE_BYPASS);
  1465	
  1466		/* Disable PLL output */
  1467		regmap_update_bits(regmap, PLL_MODE(pll),  PLL_OUTCTRL, 0);
  1468	
  1469		/* Set operation mode to OFF */
  1470		regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
  1471	
  1472		/* Place the PLL in STANDBY mode */
  1473		regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
  1474	}
  1475	EXPORT_SYMBOL_GPL(clk_trion_pll_configure);
  1476	

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



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