diff mbox series

[v5,02/10] clk: qcom: branch: Add helper functions for setting SLEEP/WAKE bits

Message ID 20230201183626.351211-3-konrad.dybcio@linaro.org
State New
Headers
Series [v5,01/10] clk: qcom: branch: Add helper functions for setting retain bits |

Commit Message

Konrad Dybcio Feb. 1, 2023, 6:36 p.m. UTC 
  HLOS-controlled branch clocks on non-ancient Qualcomm platforms
feature SLEEP and WAKE fields which can be written to to configure
how long the clock hardware should wait internally before being
(un)gated. Some very sensitive clocks need to have these values
programmed to prevent putting the hardware in a not-exactly-good
state. Add definitions of these fields and introduce helpers for
setting them inside clock drivers.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
v4 -> v5:

- Introduce helpers that shift the value for you

 drivers/clk/qcom/clk-branch.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

Comments

kernel test robot Feb. 4, 2023, 11:30 a.m. UTC | #1 
Hi Konrad,

I love your patch! Yet something to improve:

[auto build test ERROR on clk/clk-next]
[also build test ERROR on linus/master v6.2-rc6]
[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/Konrad-Dybcio/clk-qcom-branch-Add-helper-functions-for-setting-SLEEP-WAKE-bits/20230202-033712
base:   https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next
patch link:    https://lore.kernel.org/r/20230201183626.351211-3-konrad.dybcio%40linaro.org
patch subject: [PATCH v5 02/10] clk: qcom: branch: Add helper functions for setting SLEEP/WAKE bits
config: arm-randconfig-r013-20230204 (https://download.01.org/0day-ci/archive/20230204/202302041929.36wT4EUe-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 4196ca3278f78c6e19246e54ab0ecb364e37d66a)
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 arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/intel-lab-lkp/linux/commit/abd8a21fce6fafe4998281709f574b94b6c87031
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Konrad-Dybcio/clk-qcom-branch-Add-helper-functions-for-setting-SLEEP-WAKE-bits/20230202-033712
        git checkout abd8a21fce6fafe4998281709f574b94b6c87031
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/clk/

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

All errors (new ones prefixed by >>):

   In file included from drivers/clk/qcom/gcc-apq8084.c:24:
>> drivers/clk/qcom/clk-branch.h:71:7: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
                              FIELD_PREP(CBCR_WAKEUP, val));
                              ^
   drivers/clk/qcom/clk-branch.h:77:7: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
                              FIELD_PREP(CBCR_SLEEP, val));
                              ^
   2 errors generated.


vim +/FIELD_PREP +71 drivers/clk/qcom/clk-branch.h

    67	
    68	static inline void qcom_branch_set_wakeup(struct regmap *regmap, struct clk_branch clk, u32 val)
    69	{
    70		regmap_update_bits(regmap, clk.halt_reg, CBCR_WAKEUP,
  > 71				   FIELD_PREP(CBCR_WAKEUP, val));
    72	}
    73
diff mbox series

Patch

diff --git a/drivers/clk/qcom/clk-branch.h b/drivers/clk/qcom/clk-branch.h
index 55b3a2c3afed..fa90e150853b 100644
--- a/drivers/clk/qcom/clk-branch.h
+++ b/drivers/clk/qcom/clk-branch.h
@@ -41,6 +41,8 @@  struct clk_branch {
 #define CBCR_FORCE_MEM_CORE_ON		BIT(14)
 #define CBCR_FORCE_MEM_PERIPH_ON	BIT(13)
 #define CBCR_FORCE_MEM_PERIPH_OFF	BIT(12)
+#define CBCR_WAKEUP			GENMASK(11, 8)
+#define CBCR_SLEEP			GENMASK(7, 4)
 
 static inline void qcom_branch_set_force_mem_core(struct regmap *regmap,
 						  struct clk_branch clk, bool on)
@@ -63,6 +65,18 @@  static inline void qcom_branch_set_force_periph_off(struct regmap *regmap,
 			   on ? CBCR_FORCE_MEM_PERIPH_OFF : 0);
 }
 
+static inline void qcom_branch_set_wakeup(struct regmap *regmap, struct clk_branch clk, u32 val)
+{
+	regmap_update_bits(regmap, clk.halt_reg, CBCR_WAKEUP,
+			   FIELD_PREP(CBCR_WAKEUP, val));
+}
+
+static inline void qcom_branch_set_sleep(struct regmap *regmap, struct clk_branch clk, u32 val)
+{
+	regmap_update_bits(regmap, clk.halt_reg, CBCR_SLEEP,
+			   FIELD_PREP(CBCR_SLEEP, val));
+}
+
 extern const struct clk_ops clk_branch_ops;
 extern const struct clk_ops clk_branch2_ops;
 extern const struct clk_ops clk_branch_simple_ops;