Re: [PATCH 2/2] clk: mediatek: Add drivers for MT6735 syscon clock and reset controllers

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Il 21/10/24 14:16, Yassine Oudjana ha scritto:
From: Yassine Oudjana <y.oudjana@xxxxxxxxxxxxxx>

Add drivers for IMGSYS, MFGCFG, VDECSYS and VENCSYS clocks and resets
on MT6735.

Signed-off-by: Yassine Oudjana <y.oudjana@xxxxxxxxxxxxxx>
---
  MAINTAINERS                               |  4 ++
  drivers/clk/mediatek/Kconfig              | 32 +++++++++
  drivers/clk/mediatek/Makefile             |  4 ++
  drivers/clk/mediatek/clk-mt6735-imgsys.c  | 57 ++++++++++++++++
  drivers/clk/mediatek/clk-mt6735-mfgcfg.c  | 61 +++++++++++++++++
  drivers/clk/mediatek/clk-mt6735-vdecsys.c | 81 +++++++++++++++++++++++
  drivers/clk/mediatek/clk-mt6735-vencsys.c | 53 +++++++++++++++
  7 files changed, 292 insertions(+)
  create mode 100644 drivers/clk/mediatek/clk-mt6735-imgsys.c
  create mode 100644 drivers/clk/mediatek/clk-mt6735-mfgcfg.c
  create mode 100644 drivers/clk/mediatek/clk-mt6735-vdecsys.c
  create mode 100644 drivers/clk/mediatek/clk-mt6735-vencsys.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 25484783f6a0b..939f9d29fc9bf 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14533,9 +14533,13 @@ L:	linux-clk@xxxxxxxxxxxxxxx
  L:	linux-mediatek@xxxxxxxxxxxxxxxxxxx (moderated for non-subscribers)
  S:	Maintained
  F:	drivers/clk/mediatek/clk-mt6735-apmixedsys.c
+F:	drivers/clk/mediatek/clk-mt6735-imgsys.c
  F:	drivers/clk/mediatek/clk-mt6735-infracfg.c
+F:	drivers/clk/mediatek/clk-mt6735-mfgcfg.c
  F:	drivers/clk/mediatek/clk-mt6735-pericfg.c
  F:	drivers/clk/mediatek/clk-mt6735-topckgen.c
+F:	drivers/clk/mediatek/clk-mt6735-vdecsys.c
+F:	drivers/clk/mediatek/clk-mt6735-vencsys.c
  F:	include/dt-bindings/clock/mediatek,mt6735-apmixedsys.h
  F:	include/dt-bindings/clock/mediatek,mt6735-imgsys.h
  F:	include/dt-bindings/clock/mediatek,mt6735-infracfg.h
diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index 7a33f9e92d963..4dd6d2d6263fd 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -133,6 +133,38 @@ config COMMON_CLK_MT6735
  	  by apmixedsys, topckgen, infracfg and pericfg on the
  	  MediaTek MT6735 SoC.
+config COMMON_CLK_MT6735_IMGSYS
+	tristate "Clock driver for MediaTek MT6735 imgsys"
+	depends on (ARCH_MEDIATEK && COMMON_CLK_MT6735) || COMPILE_TEST

If this depends on COMMON_CLK_MT6735, it automatically also depends on
ARCH_MEDIATEK, because the former cannot be selected without satisfying
the dependency on the latter.

Also, with those being really dependant on COMMON_CLK_MT6735, it does
not make any sense to COMPILE_TEST those alone anyway...

+	select COMMON_CLK_MEDIATEK

The same goes for this select statement: it's already done when selecting
COMMON_CLK_MT6735.

Finally:

config COMMON_CLK_MT6735_IMGSYS
     tristate "Clock driver for MediaTek MT6735 imgsys"
     depends on COMMON_CLK_MT6735
     help
       blah blah blah

is just fine - and shorter too :-)

+	help
+	  This enables a driver for clocks provided by imgsys
+	  on the MediaTek MT6735 SoC.
+
+config COMMON_CLK_MT6735_MFGCFG
+	tristate "Clock driver for MediaTek MT6735 mfgcfg"
+	depends on (ARCH_MEDIATEK && COMMON_CLK_MT6735) || COMPILE_TEST
+	select COMMON_CLK_MEDIATEK
+	help
+	  This enables a driver for clocks and resets provided
+	  by mfgcfg on the MediaTek MT6735 SoC.
+
+config COMMON_CLK_MT6735_VDECSYS
+	tristate "Clock driver for MediaTek MT6735 vdecsys"
+	depends on (ARCH_MEDIATEK && COMMON_CLK_MT6735) || COMPILE_TEST
+	select COMMON_CLK_MEDIATEK
+	help
+	  This enables a driver for clocks and resets provided
+	  by vdecsys on the MediaTek MT6735 SoC.
+
+config COMMON_CLK_MT6735_VENCSYS
+	tristate "Clock driver for MediaTek MT6735 vencsys"
+	depends on (ARCH_MEDIATEK && COMMON_CLK_MT6735) || COMPILE_TEST
+	select COMMON_CLK_MEDIATEK
+	help
+	  This enables a driver for clocks provided by vencsys
+	  on the MediaTek MT6735 SoC.
+
  config COMMON_CLK_MT6765
         bool "Clock driver for MediaTek MT6765"
         depends on (ARCH_MEDIATEK && ARM64) || COMPILE_TEST

..snip..

diff --git a/drivers/clk/mediatek/clk-mt6735-vdecsys.c b/drivers/clk/mediatek/clk-mt6735-vdecsys.c
new file mode 100644
index 0000000000000..f59b481aaa6da
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt6735-vdecsys.c
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2022 Yassine Oudjana <y.oudjana@xxxxxxxxxxxxxx>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+#include "clk-gate.h"
+#include "clk-mtk.h"
+
+#include <dt-bindings/clock/mediatek,mt6735-vdecsys.h>
+#include <dt-bindings/reset/mediatek,mt6735-vdecsys.h>
+

..snip..

+static u16 vdecsys_rst_bank_ofs[] = { VDEC_RESETB_CON, SMI_LARB1_RESETB_CON };
+
+static u16 vdecsys_rst_idx_map[] = {
+	[MT6735_VDEC_RST0_VDEC]		= 0 * RST_NR_PER_BANK + 0,
+

Please remove this extra blank line, it's not needed.

+	[MT6735_VDEC_RST1_SMI_LARB1]	= 1 * RST_NR_PER_BANK + 0,
+};
+
+static const struct mtk_clk_rst_desc vdecsys_resets = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_ofs = vdecsys_rst_bank_ofs,
+	.rst_bank_nr = ARRAY_SIZE(vdecsys_rst_bank_ofs),
+	.rst_idx_map = vdecsys_rst_idx_map,
+	.rst_idx_map_nr = ARRAY_SIZE(vdecsys_rst_idx_map)
+};
+
+static const struct mtk_clk_desc vdecsys_clks = {
+	.clks = vdecsys_gates,
+	.num_clks = ARRAY_SIZE(vdecsys_gates),
+

same here.

+	.rst_desc = &vdecsys_resets
+};
+
The rest looks good, and I'm confident that you're getting my R-b on v2.

Cheers,
Angelo




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