Re: [PATCH 2/2] clk: qcom: Add MSM8226 Multimedia Clock Controller support
From: Luca Weiss <hidden>
Date: 2022-01-26 22:40:41
Also in:
linux-arm-msm, linux-clk, lkml
Hi Bartosz, are you planning to work on this? If not I can pick it up and make a v2. Please let me know! Regards Luca On Montag, 6. Dezember 2021 17:12:20 CET Bjorn Andersson wrote:
On Fri 12 Nov 19:58 CST 2021, Bartosz Dudziak wrote:quoted
diff --git a/drivers/clk/qcom/mmcc-msm8974.cb/drivers/clk/qcom/mmcc-msm8974.c[..]quoted
static int mmcc_msm8974_probe(struct platform_device *pdev) { struct regmap *regmap; + const struct of_device_id *match; + + match = of_match_device(mmcc_msm8974_match_table, &pdev->dev);Could you please use of_device_get_match_data() instead?quoted
+ if (!match)As a general suggestion; I don't see how we would end up here with !match, but if we somehow do it would be during development and you would have an easier time debugging this by hitting a NULL pointer dereference with a callstack, than tracking down why your clocks are missing... Thanks, Bjornquoted
+ return -ENODEV; - regmap = qcom_cc_map(pdev, &mmcc_msm8974_desc); + regmap = qcom_cc_map(pdev, match->data); if (IS_ERR(regmap)) return PTR_ERR(regmap); - clk_pll_configure_sr_hpm_lp(&mmpll1, regmap, &mmpll1_config, true); - clk_pll_configure_sr_hpm_lp(&mmpll3, regmap, &mmpll3_config, false); + if (match->data == &mmcc_msm8974_desc) { + clk_pll_configure_sr_hpm_lp(&mmpll1, regmap,
&mmpll1_config, true);
quoted
+ clk_pll_configure_sr_hpm_lp(&mmpll3, regmap,
&mmpll3_config, false);
quoted
+ } else { + msm8226_clock_override(); + } - return qcom_cc_really_probe(pdev, &mmcc_msm8974_desc, regmap); + return qcom_cc_really_probe(pdev, match->data, regmap); } static struct platform_driver mmcc_msm8974_driver = {