Here's a collection of clk driver fixes.

- Fix qcom mux logic to look at the proper parent table member.
    Luckily this clk type isn't very common.
 
  - Don't kill clks on qcom systems that use Trion PLLs that are
    enabled out of the bootloader. We will simply skip programming
    the PLL rate if it's already done.
 
  - Use the proper clk_ops for the qcom sm6125 ICE clks.
 
  - Use module_platform_driver() in i.MX as it can be a module.
 
  - Fix a UAF in the versatile clk driver on an error path.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk driver fixes from Stephen Boyd:

 - Fix qcom mux logic to look at the proper parent table member. Luckily
   this clk type isn't very common.

 - Don't kill clks on qcom systems that use Trion PLLs that are enabled
   out of the bootloader. We will simply skip programming the PLL rate
   if it's already done.

 - Use the proper clk_ops for the qcom sm6125 ICE clks.

 - Use module_platform_driver() in i.MX as it can be a module.

 - Fix a UAF in the versatile clk driver on an error path.

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: versatile: clk-icst: use after free on error path
  clk: qcom: sm6125-gcc: Swap ops of ice and apps on sdcc1
  clk: imx: use module_platform_driver
  clk: qcom: clk-alpha-pll: Don't reconfigure running Trion
  clk: qcom: regmap-mux: fix parent clock lookup
This commit is contained in:
Linus Torvalds 2021-12-11 09:06:08 -08:00
commit 2acdaf59e5
8 changed files with 29 additions and 6 deletions

View File

@ -370,7 +370,7 @@ static struct platform_driver imx8qxp_lpcg_clk_driver = {
.probe = imx8qxp_lpcg_clk_probe,
};
builtin_platform_driver(imx8qxp_lpcg_clk_driver);
module_platform_driver(imx8qxp_lpcg_clk_driver);
MODULE_AUTHOR("Aisheng Dong <aisheng.dong@nxp.com>");
MODULE_DESCRIPTION("NXP i.MX8QXP LPCG clock driver");

View File

@ -308,7 +308,7 @@ static struct platform_driver imx8qxp_clk_driver = {
},
.probe = imx8qxp_clk_probe,
};
builtin_platform_driver(imx8qxp_clk_driver);
module_platform_driver(imx8qxp_clk_driver);
MODULE_AUTHOR("Aisheng Dong <aisheng.dong@nxp.com>");
MODULE_DESCRIPTION("NXP i.MX8QXP clock driver");

View File

@ -1429,6 +1429,15 @@ EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_fabia_ops);
void clk_trion_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
const struct alpha_pll_config *config)
{
/*
* If the bootloader left the PLL enabled it's likely that there are
* RCGs that will lock up if we disable the PLL below.
*/
if (trion_pll_is_enabled(pll, regmap)) {
pr_debug("Trion PLL is already enabled, skipping configuration\n");
return;
}
clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l);
regmap_write(regmap, PLL_CAL_L_VAL(pll), TRION_PLL_CAL_VAL);
clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha);

View File

@ -28,7 +28,7 @@ static u8 mux_get_parent(struct clk_hw *hw)
val &= mask;
if (mux->parent_map)
return qcom_find_src_index(hw, mux->parent_map, val);
return qcom_find_cfg_index(hw, mux->parent_map, val);
return val;
}

View File

@ -69,6 +69,18 @@ int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map, u8 src)
}
EXPORT_SYMBOL_GPL(qcom_find_src_index);
int qcom_find_cfg_index(struct clk_hw *hw, const struct parent_map *map, u8 cfg)
{
int i, num_parents = clk_hw_get_num_parents(hw);
for (i = 0; i < num_parents; i++)
if (cfg == map[i].cfg)
return i;
return -ENOENT;
}
EXPORT_SYMBOL_GPL(qcom_find_cfg_index);
struct regmap *
qcom_cc_map(struct platform_device *pdev, const struct qcom_cc_desc *desc)
{

View File

@ -49,6 +49,8 @@ extern void
qcom_pll_set_fsm_mode(struct regmap *m, u32 reg, u8 bias_count, u8 lock_count);
extern int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map,
u8 src);
extern int qcom_find_cfg_index(struct clk_hw *hw, const struct parent_map *map,
u8 cfg);
extern int qcom_cc_register_board_clk(struct device *dev, const char *path,
const char *name, unsigned long rate);

View File

@ -1121,7 +1121,7 @@ static struct clk_rcg2 gcc_sdcc1_apps_clk_src = {
.name = "gcc_sdcc1_apps_clk_src",
.parent_data = gcc_parent_data_1,
.num_parents = ARRAY_SIZE(gcc_parent_data_1),
.ops = &clk_rcg2_ops,
.ops = &clk_rcg2_floor_ops,
},
};
@ -1143,7 +1143,7 @@ static struct clk_rcg2 gcc_sdcc1_ice_core_clk_src = {
.name = "gcc_sdcc1_ice_core_clk_src",
.parent_data = gcc_parent_data_0,
.num_parents = ARRAY_SIZE(gcc_parent_data_0),
.ops = &clk_rcg2_floor_ops,
.ops = &clk_rcg2_ops,
},
};

View File

@ -543,8 +543,8 @@ static void __init of_syscon_icst_setup(struct device_node *np)
regclk = icst_clk_setup(NULL, &icst_desc, name, parent_name, map, ctype);
if (IS_ERR(regclk)) {
kfree(name);
pr_err("error setting up syscon ICST clock %s\n", name);
kfree(name);
return;
}
of_clk_add_provider(np, of_clk_src_simple_get, regclk);