diff mbox series

[v2,2/3] spi: cadence-quadspi: Add clock configuration for StarFive JH7110 QSPI

Message ID 20230602084925.215411-3-william.qiu@starfivetech.com
State New
Headers
Series Add initialization of clock for StarFive JH7110 SoC |

Commit Message

William Qiu June 2, 2023, 8:49 a.m. UTC 
  Add QSPI clock operation in device probe.

Signed-off-by: William Qiu <william.qiu@starfivetech.com>
Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
---
 drivers/spi/spi-cadence-quadspi.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

Comments

kernel test robot June 2, 2023, 12:33 p.m. UTC | #1 
Hi William,

kernel test robot noticed the following build warnings:

[auto build test WARNING on broonie-spi/for-next]
[also build test WARNING on linus/master v6.4-rc4 next-20230602]
[cannot apply to robh/for-next]
[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/William-Qiu/dt-bindings-qspi-cdns-qspi-nor-Add-clocks-for-StarFive-JH7110-SoC/20230602-165251
base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
patch link:    https://lore.kernel.org/r/20230602084925.215411-3-william.qiu%40starfivetech.com
patch subject: [PATCH v2 2/3] spi: cadence-quadspi: Add clock configuration for StarFive JH7110 QSPI
config: powerpc-allyesconfig (https://download.01.org/0day-ci/archive/20230602/202306022017.UbwjjWRN-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 12.3.0
reproduce (this is a W=1 build):
        mkdir -p ~/bin
        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/6bbd49e32d407d210b6ea322696cef2e49bf3fa1
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review William-Qiu/dt-bindings-qspi-cdns-qspi-nor-Add-clocks-for-StarFive-JH7110-SoC/20230602-165251
        git checkout 6bbd49e32d407d210b6ea322696cef2e49bf3fa1
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/spi/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306022017.UbwjjWRN-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/spi/spi-cadence-quadspi.c: In function 'cqspi_resume':
>> drivers/spi/spi-cadence-quadspi.c:1873:17: warning: ignoring return value of 'clk_bulk_prepare_enable' declared with attribute 'warn_unused_result' [-Wunused-result]
    1873 |                 clk_bulk_prepare_enable(cqspi->num_clks, cqspi->clks);
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +1873 drivers/spi/spi-cadence-quadspi.c

  1865	
  1866	static int cqspi_resume(struct device *dev)
  1867	{
  1868		struct cqspi_st *cqspi = dev_get_drvdata(dev);
  1869		struct spi_master *master = dev_get_drvdata(dev);
  1870	
  1871		clk_prepare_enable(cqspi->clk);
  1872		if (of_device_is_compatible(dev->of_node, "starfive,jh7110-qspi"))
> 1873			clk_bulk_prepare_enable(cqspi->num_clks, cqspi->clks);
  1874		cqspi_wait_idle(cqspi);
  1875		cqspi_controller_init(cqspi);
  1876	
  1877		cqspi->current_cs = -1;
  1878		cqspi->sclk = 0;
  1879	
  1880		return spi_master_resume(master);
  1881	}
  1882
William Qiu June 6, 2023, 3:32 a.m. UTC | #2 
On 2023/6/2 20:33, kernel test robot wrote:
> Hi William,
> 
> kernel test robot noticed the following build warnings:
> 
> [auto build test WARNING on broonie-spi/for-next]
> [also build test WARNING on linus/master v6.4-rc4 next-20230602]
> [cannot apply to robh/for-next]
> [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/William-Qiu/dt-bindings-qspi-cdns-qspi-nor-Add-clocks-for-StarFive-JH7110-SoC/20230602-165251
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
> patch link:    https://lore.kernel.org/r/20230602084925.215411-3-william.qiu%40starfivetech.com
> patch subject: [PATCH v2 2/3] spi: cadence-quadspi: Add clock configuration for StarFive JH7110 QSPI
> config: powerpc-allyesconfig (https://download.01.org/0day-ci/archive/20230602/202306022017.UbwjjWRN-lkp@intel.com/config)
> compiler: powerpc-linux-gcc (GCC) 12.3.0
> reproduce (this is a W=1 build):
>         mkdir -p ~/bin
>         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/6bbd49e32d407d210b6ea322696cef2e49bf3fa1
>         git remote add linux-review https://github.com/intel-lab-lkp/linux
>         git fetch --no-tags linux-review William-Qiu/dt-bindings-qspi-cdns-qspi-nor-Add-clocks-for-StarFive-JH7110-SoC/20230602-165251
>         git checkout 6bbd49e32d407d210b6ea322696cef2e49bf3fa1
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/spi/
> 
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202306022017.UbwjjWRN-lkp@intel.com/
> 
> All warnings (new ones prefixed by >>):
> 
>    drivers/spi/spi-cadence-quadspi.c: In function 'cqspi_resume':
>>> drivers/spi/spi-cadence-quadspi.c:1873:17: warning: ignoring return value of 'clk_bulk_prepare_enable' declared with attribute 'warn_unused_result' [-Wunused-result]
>     1873 |                 clk_bulk_prepare_enable(cqspi->num_clks, cqspi->clks);
>          |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> 
> vim +1873 drivers/spi/spi-cadence-quadspi.c
> 
>   1865	
>   1866	static int cqspi_resume(struct device *dev)
>   1867	{
>   1868		struct cqspi_st *cqspi = dev_get_drvdata(dev);
>   1869		struct spi_master *master = dev_get_drvdata(dev);
>   1870	
>   1871		clk_prepare_enable(cqspi->clk);
>   1872		if (of_device_is_compatible(dev->of_node, "starfive,jh7110-qspi"))
>> 1873			clk_bulk_prepare_enable(cqspi->num_clks, cqspi->clks);
>   1874		cqspi_wait_idle(cqspi);
>   1875		cqspi_controller_init(cqspi);
>   1876	
>   1877		cqspi->current_cs = -1;
>   1878		cqspi->sclk = 0;
>   1879	
>   1880		return spi_master_resume(master);
>   1881	}
>   1882	
> 

Thanks about that. I'll fix it in next version.

Best Regards,
William
diff mbox series

Patch

diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c
index 6ddb2dfc0f00..21788472c7fb 100644
--- a/drivers/spi/spi-cadence-quadspi.c
+++ b/drivers/spi/spi-cadence-quadspi.c
@@ -63,6 +63,8 @@  struct cqspi_st {
 	struct platform_device	*pdev;
 	struct spi_master	*master;
 	struct clk		*clk;
+	struct clk_bulk_data	*clks;
+	unsigned int		num_clks;
 	unsigned int		sclk;
 
 	void __iomem		*iobase;
@@ -1715,6 +1717,16 @@  static int cqspi_probe(struct platform_device *pdev)
 	}
 
 	if (of_device_is_compatible(pdev->dev.of_node, "starfive,jh7110-qspi")) {
+		cqspi->num_clks = devm_clk_bulk_get_all(dev, &cqspi->clks);
+		if (cqspi->num_clks < 0) {
+			dev_err(dev, "Cannot claim clock: %u\n", cqspi->num_clks);
+			return -EINVAL;
+		}
+
+		ret = clk_bulk_prepare_enable(cqspi->num_clks, cqspi->clks);
+		if (ret)
+			dev_err(dev, "Cannot enable clock clks\n");
+
 		rstc_ref = devm_reset_control_get_optional_exclusive(dev, "rstc_ref");
 		if (IS_ERR(rstc_ref)) {
 			ret = PTR_ERR(rstc_ref);
@@ -1816,6 +1828,9 @@  static void cqspi_remove(struct platform_device *pdev)
 
 	clk_disable_unprepare(cqspi->clk);
 
+	if (of_device_is_compatible(pdev->dev.of_node, "starfive,jh7110-qspi"))
+		clk_bulk_disable_unprepare(cqspi->num_clks, cqspi->clks);
+
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 }
@@ -1831,6 +1846,9 @@  static int cqspi_suspend(struct device *dev)
 
 	clk_disable_unprepare(cqspi->clk);
 
+	if (of_device_is_compatible(dev->of_node, "starfive,jh7110-qspi"))
+		clk_bulk_disable_unprepare(cqspi->num_clks, cqspi->clks);
+
 	return ret;
 }
 
@@ -1840,6 +1858,8 @@  static int cqspi_resume(struct device *dev)
 	struct spi_master *master = dev_get_drvdata(dev);
 
 	clk_prepare_enable(cqspi->clk);
+	if (of_device_is_compatible(dev->of_node, "starfive,jh7110-qspi"))
+		clk_bulk_prepare_enable(cqspi->num_clks, cqspi->clks);
 	cqspi_wait_idle(cqspi);
 	cqspi_controller_init(cqspi);