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authorStephen Boyd <sboyd@kernel.org>2021-08-24 11:40:25 -0700
committerStephen Boyd <sboyd@kernel.org>2021-08-24 11:40:25 -0700
commit1d070108354b6c77a41931b16e8007255b70f90b (patch)
treede2374a116e5b4aefcdcf7815094608f9a6af568
parentLinux 5.14-rc1 (diff)
parentclk: rockchip: make rk3308 ddrphy4x clock critical (diff)
downloadlinux-dev-1d070108354b6c77a41931b16e8007255b70f90b.tar.xz
linux-dev-1d070108354b6c77a41931b16e8007255b70f90b.zip
Merge tag 'v5.15-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-rockchip
Pull Rockchip clk driver updates from Heiko Stuebner: - YAML conversion of rk3399 clock controller binding - Removal of GRF dependency for the rk3328/rk3036 pll types - some clock tree fixes * tag 'v5.15-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: clk: rockchip: make rk3308 ddrphy4x clock critical clk: rockchip: drop GRF dependency for rk3328/rk3036 pll types dt-bindings: clk: Convert rockchip,rk3399-cru to DT schema clk: rockchip: Add support for hclk_sfc on rk3036 clk: rockchip: rk3036: fix up the sclk_sfc parent error clk: rockchip: add dt-binding clkid for hclk_sfc on rk3036
-rw-r--r--Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.txt68
-rw-r--r--Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.yaml92
-rw-r--r--drivers/clk/rockchip/clk-pll.c2
-rw-r--r--drivers/clk/rockchip/clk-rk3036.c5
-rw-r--r--drivers/clk/rockchip/clk-rk3308.c1
-rw-r--r--include/dt-bindings/clock/rk3036-cru.h1
6 files changed, 98 insertions, 71 deletions
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.txt b/Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.txt
deleted file mode 100644
index 3bc56fae90ac..000000000000
--- a/Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.txt
+++ /dev/null
@@ -1,68 +0,0 @@
-* Rockchip RK3399 Clock and Reset Unit
-
-The RK3399 clock controller generates and supplies clock to various
-controllers within the SoC and also implements a reset controller for SoC
-peripherals.
-
-Required Properties:
-
-- compatible: PMU for CRU should be "rockchip,rk3399-pmucru"
-- compatible: CRU should be "rockchip,rk3399-cru"
-- reg: physical base address of the controller and length of memory mapped
- region.
-- #clock-cells: should be 1.
-- #reset-cells: should be 1.
-
-Optional Properties:
-
-- rockchip,grf: phandle to the syscon managing the "general register files".
- It is used for GRF muxes, if missing any muxes present in the GRF will not
- be available.
-
-Each clock is assigned an identifier and client nodes can use this identifier
-to specify the clock which they consume. All available clocks are defined as
-preprocessor macros in the dt-bindings/clock/rk3399-cru.h headers and can be
-used in device tree sources. Similar macros exist for the reset sources in
-these files.
-
-External clocks:
-
-There are several clocks that are generated outside the SoC. It is expected
-that they are defined using standard clock bindings with following
-clock-output-names:
- - "xin24m" - crystal input - required,
- - "xin32k" - rtc clock - optional,
- - "clkin_gmac" - external GMAC clock - optional,
- - "clkin_i2s" - external I2S clock - optional,
- - "pclkin_cif" - external ISP clock - optional,
- - "clk_usbphy0_480m" - output clock of the pll in the usbphy0
- - "clk_usbphy1_480m" - output clock of the pll in the usbphy1
-
-Example: Clock controller node:
-
- pmucru: pmu-clock-controller@ff750000 {
- compatible = "rockchip,rk3399-pmucru";
- reg = <0x0 0xff750000 0x0 0x1000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- };
-
- cru: clock-controller@ff760000 {
- compatible = "rockchip,rk3399-cru";
- reg = <0x0 0xff760000 0x0 0x1000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- };
-
-Example: UART controller node that consumes the clock generated by the clock
- controller:
-
- uart0: serial@ff1a0000 {
- compatible = "rockchip,rk3399-uart", "snps,dw-apb-uart";
- reg = <0x0 0xff180000 0x0 0x100>;
- clocks = <&cru SCLK_UART0>, <&cru PCLK_UART0>;
- clock-names = "baudclk", "apb_pclk";
- interrupts = <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
- reg-shift = <2>;
- reg-io-width = <4>;
- };
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.yaml
new file mode 100644
index 000000000000..72b286a1beba
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rk3399-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RK3399 Clock and Reset Unit
+
+maintainers:
+ - Xing Zheng <zhengxing@rock-chips.com>
+ - Heiko Stuebner <heiko@sntech.de>
+
+description: |
+ The RK3399 clock controller generates and supplies clock to various
+ controllers within the SoC and also implements a reset controller for SoC
+ peripherals.
+ Each clock is assigned an identifier and client nodes can use this identifier
+ to specify the clock which they consume. All available clocks are defined as
+ preprocessor macros in the dt-bindings/clock/rk3399-cru.h headers and can be
+ used in device tree sources. Similar macros exist for the reset sources in
+ these files.
+ There are several clocks that are generated outside the SoC. It is expected
+ that they are defined using standard clock bindings with following
+ clock-output-names:
+ - "xin24m" - crystal input - required,
+ - "xin32k" - rtc clock - optional,
+ - "clkin_gmac" - external GMAC clock - optional,
+ - "clkin_i2s" - external I2S clock - optional,
+ - "pclkin_cif" - external ISP clock - optional,
+ - "clk_usbphy0_480m" - output clock of the pll in the usbphy0
+ - "clk_usbphy1_480m" - output clock of the pll in the usbphy1
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rk3399-pmucru
+ - rockchip,rk3399-cru
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ clocks:
+ minItems: 1
+
+ assigned-clocks:
+ minItems: 1
+ maxItems: 64
+
+ assigned-clock-parents:
+ minItems: 1
+ maxItems: 64
+
+ assigned-clock-rates:
+ minItems: 1
+ maxItems: 64
+
+ rockchip,grf:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: >
+ phandle to the syscon managing the "general register files". It is used
+ for GRF muxes, if missing any muxes present in the GRF will not be
+ available.
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ pmucru: pmu-clock-controller@ff750000 {
+ compatible = "rockchip,rk3399-pmucru";
+ reg = <0xff750000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+ - |
+ cru: clock-controller@ff760000 {
+ compatible = "rockchip,rk3399-cru";
+ reg = <0xff760000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/drivers/clk/rockchip/clk-pll.c b/drivers/clk/rockchip/clk-pll.c
index fe937bcdb487..f7827b3b7fc1 100644
--- a/drivers/clk/rockchip/clk-pll.c
+++ b/drivers/clk/rockchip/clk-pll.c
@@ -940,7 +940,7 @@ struct clk *rockchip_clk_register_pll(struct rockchip_clk_provider *ctx,
switch (pll_type) {
case pll_rk3036:
case pll_rk3328:
- if (!pll->rate_table || IS_ERR(ctx->grf))
+ if (!pll->rate_table)
init.ops = &rockchip_rk3036_pll_clk_norate_ops;
else
init.ops = &rockchip_rk3036_pll_clk_ops;
diff --git a/drivers/clk/rockchip/clk-rk3036.c b/drivers/clk/rockchip/clk-rk3036.c
index 614845cc5b4a..d644bc155ec6 100644
--- a/drivers/clk/rockchip/clk-rk3036.c
+++ b/drivers/clk/rockchip/clk-rk3036.c
@@ -121,6 +121,7 @@ PNAME(mux_pll_src_3plls_p) = { "apll", "dpll", "gpll" };
PNAME(mux_timer_p) = { "xin24m", "pclk_peri_src" };
PNAME(mux_pll_src_apll_dpll_gpll_usb480m_p) = { "apll", "dpll", "gpll", "usb480m" };
+PNAME(mux_pll_src_dmyapll_dpll_gpll_xin24_p) = { "dummy_apll", "dpll", "gpll", "xin24m" };
PNAME(mux_mmc_src_p) = { "apll", "dpll", "gpll", "xin24m" };
PNAME(mux_i2s_pre_p) = { "i2s_src", "i2s_frac", "ext_i2s", "xin12m" };
@@ -340,7 +341,7 @@ static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = {
RK2928_CLKSEL_CON(16), 8, 2, MFLAGS, 10, 5, DFLAGS,
RK2928_CLKGATE_CON(10), 4, GFLAGS),
- COMPOSITE(SCLK_SFC, "sclk_sfc", mux_pll_src_apll_dpll_gpll_usb480m_p, 0,
+ COMPOSITE(SCLK_SFC, "sclk_sfc", mux_pll_src_dmyapll_dpll_gpll_xin24_p, 0,
RK2928_CLKSEL_CON(16), 0, 2, MFLAGS, 2, 5, DFLAGS,
RK2928_CLKGATE_CON(10), 5, GFLAGS),
@@ -403,7 +404,7 @@ static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = {
GATE(HCLK_OTG0, "hclk_otg0", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 13, GFLAGS),
GATE(HCLK_OTG1, "hclk_otg1", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(7), 3, GFLAGS),
GATE(HCLK_I2S, "hclk_i2s", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 2, GFLAGS),
- GATE(0, "hclk_sfc", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 14, GFLAGS),
+ GATE(HCLK_SFC, "hclk_sfc", "hclk_peri", 0, RK2928_CLKGATE_CON(3), 14, GFLAGS),
GATE(HCLK_MAC, "hclk_mac", "hclk_peri", 0, RK2928_CLKGATE_CON(3), 5, GFLAGS),
/* pclk_peri gates */
diff --git a/drivers/clk/rockchip/clk-rk3308.c b/drivers/clk/rockchip/clk-rk3308.c
index 2c3bd0c749f2..db3396c3e6e9 100644
--- a/drivers/clk/rockchip/clk-rk3308.c
+++ b/drivers/clk/rockchip/clk-rk3308.c
@@ -911,6 +911,7 @@ static const char *const rk3308_critical_clocks[] __initconst = {
"hclk_audio",
"pclk_audio",
"sclk_ddrc",
+ "clk_ddrphy4x",
};
static void __init rk3308_clk_init(struct device_node *np)
diff --git a/include/dt-bindings/clock/rk3036-cru.h b/include/dt-bindings/clock/rk3036-cru.h
index 35a5a01f9697..a96a9870ad59 100644
--- a/include/dt-bindings/clock/rk3036-cru.h
+++ b/include/dt-bindings/clock/rk3036-cru.h
@@ -81,6 +81,7 @@
#define HCLK_OTG0 449
#define HCLK_OTG1 450
#define HCLK_NANDC 453
+#define HCLK_SFC 454
#define HCLK_SDMMC 456
#define HCLK_SDIO 457
#define HCLK_EMMC 459