kernel/linux.git/drivers/soc/mediatek, branch v6.12.80

soc: mediatek: svs: Fix memory leak in svs_enable_debug_write()

2026-03-04T12:19:44+00:00

[ Upstream commit 6259094ee806fb813ca95894c65fb80e2ec98bf1 ] In svs_enable_debug_write(), the buf allocated by memdup_user_nul() is leaked if kstrtoint() fails. Fix this by using __free(kfree) to automatically free buf, eliminating the need for explicit kfree() calls and preventing leaks. Fixes: 13f1bbcfb582 ("soc: mediatek: SVS: add debug commands") Co-developed-by: Jianhao Xu Signed-off-by: Jianhao Xu Signed-off-by: Zilin Guan [Angelo: Added missing cleanup.h inclusion] Signed-off-by: AngeloGioacchino Del Regno Signed-off-by: Sasha Levin

soc: Switch back to struct platform_driver::remove()

2025-12-18T12:54:46+00:00

[ Upstream commit 511c06e3903563dba4472430e1b586745b6ae238 ] After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/soc to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. On the way do a few whitespace changes to make indention consistent. Signed-off-by: Uwe Kleine-König Acked-by: Heiko Stuebner Acked-by: Herve Codina # for fsl/qe/{qmc,tsa}.c Acked-by: Bjorn Andersson # qcom parts Acked-by: Gabriel Somlo Acked-by: Andrew Jeffery # aspeed Link: https://lore.kernel.org/r/20241029074859.509587-2-u.kleine-koenig@baylibre.com Signed-off-by: Arnd Bergmann Stable-dep-of: 2286e18e3937 ("soc: qcom: gsbi: fix double disable caused by devm") Signed-off-by: Sasha Levin

soc: mediatek: mtk-svs: fix device leaks on mt8192 probe failure

2025-10-15T10:00:00+00:00

[ Upstream commit f1a68ba5739e42353609438e27a83b08d7f5cfd6 ] Make sure to drop the references taken by of_find_device_by_node() when looking up the thermal sensor and opp devices during probe on probe failure (e.g. probe deferral) and on driver unbind. Fixes: 0bbb09b2af9d ("soc: mediatek: SVS: add mt8192 SVS GPU driver") Cc: Roger Lu Signed-off-by: Johan Hovold Reviewed-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/20250909095651.5530-3-johan@kernel.org Signed-off-by: Matthias Brugger Signed-off-by: Sasha Levin

soc: mediatek: mtk-svs: fix device leaks on mt8183 probe failure

2025-10-15T10:00:00+00:00

[ Upstream commit 6ab4f79ea92324f7f2eb22692054a34bbba7cf35 ] Make sure to drop the references taken by of_find_device_by_node() when looking up the thermal sensor and opp devices during probe on probe failure (e.g. probe deferral) and on driver unbind. Fixes: 681a02e95000 ("soc: mediatek: SVS: introduce MTK SVS engine") Cc: Roger Lu Signed-off-by: Johan Hovold Reviewed-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/20250909095651.5530-2-johan@kernel.org Signed-off-by: Matthias Brugger Signed-off-by: Sasha Levin

soc: mediatek: mtk-mutex: Add DPI1 SOF/EOF to MT8188 mutex tables

2025-05-29T09:02:28+00:00

[ Upstream commit 694e0b7c1747603243da874de9cbbf8cb806ca44 ] MT8188 uses DPI1 to output to the HDMI controller: add the Start of Frame and End of Frame configuration for the DPI1 IP to the tables to unblock generation and sending of these signals to the GCE. Link: https://lore.kernel.org/r/20250212100012.33001-2-angelogioacchino.delregno@collabora.com Signed-off-by: AngeloGioacchino Del Regno Signed-off-by: Sasha Levin

soc: mediatek: mtk-devapc: Fix leaking IO map on driver remove

2025-02-17T09:05:32+00:00

commit c9c0036c1990da8d2dd33563e327e05a775fcf10 upstream. Driver removal should fully clean up - unmap the memory. Fixes: 0890beb22618 ("soc: mediatek: add mt6779 devapc driver") Cc: stable@vger.kernel.org Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20250104142012.115974-2-krzysztof.kozlowski@linaro.org Signed-off-by: AngeloGioacchino Del Regno Signed-off-by: Greg Kroah-Hartman

soc: mediatek: mtk-devapc: Fix leaking IO map on error paths

2025-02-17T09:05:32+00:00

commit c0eb059a4575ed57f265d9883a5203799c19982c upstream. Error paths of mtk_devapc_probe() should unmap the memory. Reported by Smatch: drivers/soc/mediatek/mtk-devapc.c:292 mtk_devapc_probe() warn: 'ctx->infra_base' from of_iomap() not released on lines: 277,281,286. Fixes: 0890beb22618 ("soc: mediatek: add mt6779 devapc driver") Cc: stable@vger.kernel.org Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20250104142012.115974-1-krzysztof.kozlowski@linaro.org Signed-off-by: AngeloGioacchino Del Regno Signed-off-by: Greg Kroah-Hartman

soc: mediatek: mtk-mutex: Reduce type size for mtk_mutex_data members

2024-07-30T08:58:46+00:00

All of mutex_mod and mutex_table_mod contain an array of bit numbers, which can go from 0 to 63, it is hence not needed to use an unsigned 32-bits integer to store that: change them to unsigned 8-bits instead. As for the mutex_sof table since this directly contains the values to write to the DISP_MUTEXn_CTL register, which has only bits [13:0] (so this register is effectively 14 bits long), change that to use unsigned 16-bits. The type of mutex_{mod,sof}_reg was also changed to 16 bits, as the maximum value that those will ever have is 0x800, because it calculates as 0x30 + (0x20 * n) where n's maximum value is 63. This reduces module size and brings no functional changes. Before: text data bss dec hex filename 9929 512 0 10441 28c9 mtk-mutex.o After: text data bss dec hex filename 7425 512 0 7937 1f01 mtk-mutex.o Link: https://lore.kernel.org/r/20240729122538.989855-1-angelogioacchino.delregno@collabora.com Signed-off-by: AngeloGioacchino Del Regno

soc: mediatek: pwrap: Use devm_clk_bulk_get_all_enable()

2024-07-30T08:57:20+00:00

Use devm_clk_bulk_get_all_enable() to simplify the code and to make sure that clk_disable_unprepare() is called if the driver is unloaded. Fixes: 55924157da8c ("soc: mediatek: pwrap: add support for sys & tmr clocks") Fixes: 1f022d84bd19 ("soc: mediatek: Add PMIC wrapper for MT8135 and MT8173 SoCs") Suggested-by: AngeloGioacchino Del Regno Signed-off-by: Christophe JAILLET Link: https://lore.kernel.org/r/5b1114c538dd5230728592855f89942aec8ef83b.1720331018.git.christophe.jaillet@wanadoo.fr Signed-off-by: AngeloGioacchino Del Regno

soc: mediatek: pwrap: Constify some struct int[]

2024-07-30T08:57:19+00:00

These arrays are not modified in this driver. Constifying this structure moves some data to a read-only section, so increase overall security. On a x86_64, with allmodconfig: Before: ====== text data bss dec hex filename 45528 8532 16 54076 d33c drivers/soc/mediatek/mtk-pmic-wrap.o After: ===== text data bss dec hex filename 52664 1384 16 54064 d330 drivers/soc/mediatek/mtk-pmic-wrap.o Signed-off-by: Christophe JAILLET Reviewed-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/f1fea00fbaa0fea298bf67732e019f9cc5c407ab.1720331018.git.christophe.jaillet@wanadoo.fr Signed-off-by: AngeloGioacchino Del Regno