[PATCH v2 00/17] DVFS for IO devices on sdm845 and sc7180

[PATCH v2 00/17] DVFS for IO devices on sdm845 and sc7180

[Rajendra Nayak]

Changes in v2:
1. Added error handling for dev_pm_opp_set_clkname()
and dev_pm_opp_of_add_table()
2. Used dev_pm_opp_put_clkname() in the cleanup path
3. Dropped the OPP patch pulled in by Viresh [1]
4. Dropped the UFS patches since they had some major rework
needed because of changes that were merged in the merge window
and I don't have a UFS device currently to validate the changes.

We have had support added in the OPP core for a while now to support
DVFS for IO devices, and this series uses that infrastructure to
add DVFS support for various IO devices in sdm845 and sc7180 SoCs.

[1] https://lkml.org/lkml/2020/4/14/98 

Rajendra Nayak (17):
  tty: serial: qcom_geni_serial: Use OPP API to set clk/perf state
  spi: spi-geni-qcom: Use OPP API to set clk/perf state
  arm64: dts: sdm845: Add OPP table for all qup devices
  arm64: dts: sc7180: Add OPP table for all qup devices
  drm/msm/dpu: Use OPP API to set clk/perf state
  drm/msm: dsi: Use OPP API to set clk/perf state
  arm64: dts: sdm845: Add DSI and MDP OPP tables and power-domains
  arm64: dts: sc7180: Add DSI and MDP OPP tables and power-domains
  mmc: sdhci-msm: Use OPP API to set clk/perf state
  arm64: dts: sdm845: Add sdhc opps and power-domains
  arm64: dts: sc7180: Add sdhc opps and power-domains
  media: venus: core: Add support for opp tables/perf voting
  arm64: dts: sdm845: Add OPP tables and power-domains for venus
  arm64: dts: sc7180: Add OPP tables and power-domains for venus
  spi: spi-qcom-qspi: Use OPP API to set clk/perf state
  arm64: dts: sdm845: Add qspi opps and power-domains
  arm64: dts: sc7180: Add qspi opps and power-domains

 arch/arm64/boot/dts/qcom/sc7180.dtsi           | 199 +++++++++++++++++-
 arch/arm64/boot/dts/qcom/sdm845.dtsi           | 266 ++++++++++++++++++++++++-
 drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c  |   3 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c        |  20 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h        |   4 +
 drivers/gpu/drm/msm/dsi/dsi.h                  |   2 +
 drivers/gpu/drm/msm/dsi/dsi_cfg.c              |   4 +-
 drivers/gpu/drm/msm/dsi/dsi_host.c             |  53 +++++
 drivers/media/platform/qcom/venus/core.c       |  21 ++
 drivers/media/platform/qcom/venus/core.h       |   5 +
 drivers/media/platform/qcom/venus/pm_helpers.c |  37 +++-
 drivers/mmc/host/sdhci-msm.c                   |  34 +++-
 drivers/spi/spi-geni-qcom.c                    |  22 +-
 drivers/spi/spi-qcom-qspi.c                    |  24 ++-
 drivers/tty/serial/qcom_geni_serial.c          |  30 ++-
 include/linux/qcom-geni-se.h                   |   2 +
 16 files changed, 700 insertions(+), 26 deletions(-)

-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 01/17] tty: serial: qcom_geni_serial: Use OPP API to set clk/perf state

[Rajendra Nayak]

geni serial needs to express a perforamnce state requirement on CX
powerdomain depending on the frequency of the clock rates.
Use OPP table from DT to register with OPP framework and use
dev_pm_opp_set_rate() to set the clk/perf state.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Akash Asthana <akashast@codeaurora.org>
Cc: linux-serial@vger.kernel.org
---
 drivers/tty/serial/qcom_geni_serial.c | 30 +++++++++++++++++++++++++-----
 include/linux/qcom-geni-se.h          |  2 ++
 2 files changed, 27 insertions(+), 5 deletions(-)

diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index 6119090..151012c 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -9,6 +9,7 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/pm_opp.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/pm_wakeirq.h>
@@ -128,6 +129,7 @@ struct qcom_geni_serial_port {
 	int wakeup_irq;
 	bool rx_tx_swap;
 	bool cts_rts_swap;
+	bool opp_table;
 };
 
 static const struct uart_ops qcom_geni_console_pops;
@@ -961,7 +963,7 @@ static void qcom_geni_serial_set_termios(struct uart_port *uport,
 		goto out_restart_rx;
 
 	uport->uartclk = clk_rate;
-	clk_set_rate(port->se.clk, clk_rate);
+	dev_pm_opp_set_rate(uport->dev, clk_rate);
 	ser_clk_cfg = SER_CLK_EN;
 	ser_clk_cfg |= clk_div << CLK_DIV_SHFT;
 
@@ -1198,8 +1200,11 @@ static void qcom_geni_serial_pm(struct uart_port *uport,
 	if (new_state == UART_PM_STATE_ON && old_state == UART_PM_STATE_OFF)
 		geni_se_resources_on(&port->se);
 	else if (new_state == UART_PM_STATE_OFF &&
-			old_state == UART_PM_STATE_ON)
+			old_state == UART_PM_STATE_ON) {
+		/* Drop the performance state vote */
+		dev_pm_opp_set_rate(uport->dev, 0);
 		geni_se_resources_off(&port->se);
+	}
 }
 
 static const struct uart_ops qcom_geni_console_pops = {
@@ -1318,13 +1323,20 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
 	if (of_property_read_bool(pdev->dev.of_node, "cts-rts-swap"))
 		port->cts_rts_swap = true;
 
+	port->se.opp = dev_pm_opp_set_clkname(&pdev->dev, "se");
+	if (IS_ERR(port->se.opp))
+		return PTR_ERR(port->se.opp);
+	/* OPP table is optional */
+	if (!dev_pm_opp_of_add_table(&pdev->dev))
+		port->opp_table = true;
+
 	uport->private_data = drv;
 	platform_set_drvdata(pdev, port);
 	port->handle_rx = console ? handle_rx_console : handle_rx_uart;
 
 	ret = uart_add_one_port(drv, uport);
 	if (ret)
-		return ret;
+		goto err;
 
 	irq_set_status_flags(uport->irq, IRQ_NOAUTOEN);
 	ret = devm_request_irq(uport->dev, uport->irq, qcom_geni_serial_isr,
@@ -1332,7 +1344,7 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(uport->dev, "Failed to get IRQ ret %d\n", ret);
 		uart_remove_one_port(drv, uport);
-		return ret;
+		goto err;
 	}
 
 	/*
@@ -1349,11 +1361,16 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
 		if (ret) {
 			device_init_wakeup(&pdev->dev, false);
 			uart_remove_one_port(drv, uport);
-			return ret;
+			goto err;
 		}
 	}
 
 	return 0;
+err:
+	if (port->opp_table)
+		dev_pm_opp_of_remove_table(&pdev->dev);
+	dev_pm_opp_put_clkname(port->se.opp);
+	return ret;
 }
 
 static int qcom_geni_serial_remove(struct platform_device *pdev)
@@ -1361,6 +1378,9 @@ static int qcom_geni_serial_remove(struct platform_device *pdev)
 	struct qcom_geni_serial_port *port = platform_get_drvdata(pdev);
 	struct uart_driver *drv = port->uport.private_data;
 
+	if (port->opp_table)
+		dev_pm_opp_of_remove_table(&pdev->dev);
+	dev_pm_opp_put_clkname(port->se.opp);
 	dev_pm_clear_wake_irq(&pdev->dev);
 	device_init_wakeup(&pdev->dev, false);
 	uart_remove_one_port(drv, &port->uport);
diff --git a/include/linux/qcom-geni-se.h b/include/linux/qcom-geni-se.h
index dd46494..737e713 100644
--- a/include/linux/qcom-geni-se.h
+++ b/include/linux/qcom-geni-se.h
@@ -24,6 +24,7 @@ enum geni_se_protocol_type {
 
 struct geni_wrapper;
 struct clk;
+struct opp_table;
 
 /**
  * struct geni_se - GENI Serial Engine
@@ -39,6 +40,7 @@ struct geni_se {
 	struct device *dev;
 	struct geni_wrapper *wrapper;
 	struct clk *clk;
+	struct opp_table *opp;
 	unsigned int num_clk_levels;
 	unsigned long *clk_perf_tbl;
 };
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 02/17] spi: spi-geni-qcom: Use OPP API to set clk/perf state

[Rajendra Nayak]

geni spi needs to express a perforamnce state requirement on CX
depending on the frequency of the clock rates. Use OPP table from
DT to register with OPP framework and use dev_pm_opp_set_rate() to
set the clk/perf state.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Alok Chauhan <alokc@codeaurora.org>
Cc: Akash Asthana <akashast@codeaurora.org>
Cc: linux-spi@vger.kernel.org
---
 drivers/spi/spi-geni-qcom.c | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c
index c397242..768b2fe 100644
--- a/drivers/spi/spi-geni-qcom.c
+++ b/drivers/spi/spi-geni-qcom.c
@@ -7,6 +7,7 @@
 #include <linux/log2.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/pm_opp.h>
 #include <linux/pm_runtime.h>
 #include <linux/qcom-geni-se.h>
 #include <linux/spi/spi.h>
@@ -86,6 +87,7 @@ struct spi_geni_master {
 	spinlock_t lock;
 	enum spi_m_cmd_opcode cur_mcmd;
 	int irq;
+	bool opp_table;
 };
 
 static int get_spi_clk_cfg(unsigned int speed_hz,
@@ -95,7 +97,6 @@ static int get_spi_clk_cfg(unsigned int speed_hz,
 {
 	unsigned long sclk_freq;
 	unsigned int actual_hz;
-	struct geni_se *se = &mas->se;
 	int ret;
 
 	ret = geni_se_clk_freq_match(&mas->se,
@@ -112,9 +113,9 @@ static int get_spi_clk_cfg(unsigned int speed_hz,
 
 	dev_dbg(mas->dev, "req %u=>%u sclk %lu, idx %d, div %d\n", speed_hz,
 				actual_hz, sclk_freq, *clk_idx, *clk_div);
-	ret = clk_set_rate(se->clk, sclk_freq);
+	ret = dev_pm_opp_set_rate(mas->dev, sclk_freq);
 	if (ret)
-		dev_err(mas->dev, "clk_set_rate failed %d\n", ret);
+		dev_err(mas->dev, "dev_pm_opp_set_rate failed %d\n", ret);
 	return ret;
 }
 
@@ -561,6 +562,12 @@ static int spi_geni_probe(struct platform_device *pdev)
 	mas->se.wrapper = dev_get_drvdata(dev->parent);
 	mas->se.base = base;
 	mas->se.clk = clk;
+	mas->se.opp = dev_pm_opp_set_clkname(&pdev->dev, "se");
+	if (IS_ERR(mas->se.opp))
+		return PTR_ERR(mas->se.opp);
+	/* OPP table is optional */
+	if (!dev_pm_opp_of_add_table(&pdev->dev))
+		mas->opp_table = true;
 
 	spi->bus_num = -1;
 	spi->dev.of_node = dev->of_node;
@@ -596,6 +603,9 @@ static int spi_geni_probe(struct platform_device *pdev)
 spi_geni_probe_runtime_disable:
 	pm_runtime_disable(dev);
 	spi_master_put(spi);
+	if (mas->opp_table)
+		dev_pm_opp_of_remove_table(&pdev->dev);
+	dev_pm_opp_put_clkname(mas->se.opp);
 	return ret;
 }
 
@@ -604,6 +614,9 @@ static int spi_geni_remove(struct platform_device *pdev)
 	struct spi_master *spi = platform_get_drvdata(pdev);
 	struct spi_geni_master *mas = spi_master_get_devdata(spi);
 
+	if (mas->opp_table)
+		dev_pm_opp_of_remove_table(&pdev->dev);
+	dev_pm_opp_put_clkname(mas->se.opp);
 	/* Unregister _before_ disabling pm_runtime() so we stop transfers */
 	spi_unregister_master(spi);
 
@@ -617,6 +630,9 @@ static int __maybe_unused spi_geni_runtime_suspend(struct device *dev)
 	struct spi_master *spi = dev_get_drvdata(dev);
 	struct spi_geni_master *mas = spi_master_get_devdata(spi);
 
+	/* Drop the performance state vote */
+	dev_pm_opp_set_rate(dev, 0);
+
 	return geni_se_resources_off(&mas->se);
 }
 
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 03/17] arm64: dts: sdm845: Add OPP table for all qup devices

[Rajendra Nayak]

qup has a requirement to vote on the performance state of the CX domain
in sdm845 devices. Add OPP tables for these and also add power-domains
property for all qup instances.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
---
 arch/arm64/boot/dts/qcom/sdm845.dtsi | 115 +++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 8f926b5..36b9fb1 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -804,6 +804,25 @@
 			clock-names = "core";
 		};
 
+		qup_opp_table: qup-opp-table {
+			compatible = "operating-points-v2";
+
+			opp-19200000 {
+				opp-hz = /bits/ 64 <19200000>;
+				required-opps = <&rpmhpd_opp_min_svs>;
+			};
+
+			opp-75000000 {
+				opp-hz = /bits/ 64 <75000000>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+			};
+
+			opp-100000000 {
+				opp-hz = /bits/ 64 <100000000>;
+				required-opps = <&rpmhpd_opp_svs>;
+			};
+		};
+
 		qupv3_id_0: geniqup@8c0000 {
 			compatible = "qcom,geni-se-qup";
 			reg = <0 0x008c0000 0 0x6000>;
@@ -825,6 +844,8 @@
 				interrupts = <GIC_SPI 601 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -838,6 +859,8 @@
 				interrupts = <GIC_SPI 601 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -849,6 +872,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart0_default>;
 				interrupts = <GIC_SPI 601 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -862,6 +887,8 @@
 				interrupts = <GIC_SPI 602 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -875,6 +902,8 @@
 				interrupts = <GIC_SPI 602 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -886,6 +915,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart1_default>;
 				interrupts = <GIC_SPI 602 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -899,6 +930,8 @@
 				interrupts = <GIC_SPI 603 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -912,6 +945,8 @@
 				interrupts = <GIC_SPI 603 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -923,6 +958,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart2_default>;
 				interrupts = <GIC_SPI 603 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -936,6 +973,8 @@
 				interrupts = <GIC_SPI 604 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -949,6 +988,8 @@
 				interrupts = <GIC_SPI 604 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -960,6 +1001,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart3_default>;
 				interrupts = <GIC_SPI 604 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -973,6 +1016,8 @@
 				interrupts = <GIC_SPI 605 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -986,6 +1031,8 @@
 				interrupts = <GIC_SPI 605 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -997,6 +1044,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart4_default>;
 				interrupts = <GIC_SPI 605 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1010,6 +1059,8 @@
 				interrupts = <GIC_SPI 606 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1023,6 +1074,8 @@
 				interrupts = <GIC_SPI 606 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1034,6 +1087,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart5_default>;
 				interrupts = <GIC_SPI 606 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1047,6 +1102,8 @@
 				interrupts = <GIC_SPI 607 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1060,6 +1117,8 @@
 				interrupts = <GIC_SPI 607 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1071,6 +1130,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart6_default>;
 				interrupts = <GIC_SPI 607 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1084,6 +1145,8 @@
 				interrupts = <GIC_SPI 608 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1097,6 +1160,8 @@
 				interrupts = <GIC_SPI 608 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1108,6 +1173,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart7_default>;
 				interrupts = <GIC_SPI 608 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 		};
@@ -1133,6 +1200,8 @@
 				interrupts = <GIC_SPI 353 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1146,6 +1215,8 @@
 				interrupts = <GIC_SPI 353 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1157,6 +1228,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart8_default>;
 				interrupts = <GIC_SPI 353 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1170,6 +1243,8 @@
 				interrupts = <GIC_SPI 354 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1183,6 +1258,8 @@
 				interrupts = <GIC_SPI 354 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1194,6 +1271,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart9_default>;
 				interrupts = <GIC_SPI 354 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1207,6 +1286,8 @@
 				interrupts = <GIC_SPI 355 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1220,6 +1301,8 @@
 				interrupts = <GIC_SPI 355 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1231,6 +1314,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart10_default>;
 				interrupts = <GIC_SPI 355 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1244,6 +1329,8 @@
 				interrupts = <GIC_SPI 356 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1257,6 +1344,8 @@
 				interrupts = <GIC_SPI 356 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1268,6 +1357,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart11_default>;
 				interrupts = <GIC_SPI 356 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1281,6 +1372,8 @@
 				interrupts = <GIC_SPI 357 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1294,6 +1387,8 @@
 				interrupts = <GIC_SPI 357 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1305,6 +1400,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart12_default>;
 				interrupts = <GIC_SPI 357 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1318,6 +1415,8 @@
 				interrupts = <GIC_SPI 358 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1331,6 +1430,8 @@
 				interrupts = <GIC_SPI 358 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1342,6 +1443,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart13_default>;
 				interrupts = <GIC_SPI 358 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1355,6 +1458,8 @@
 				interrupts = <GIC_SPI 359 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1368,6 +1473,8 @@
 				interrupts = <GIC_SPI 359 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1379,6 +1486,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart14_default>;
 				interrupts = <GIC_SPI 359 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1392,6 +1501,8 @@
 				interrupts = <GIC_SPI 360 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1405,6 +1516,8 @@
 				interrupts = <GIC_SPI 360 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -1416,6 +1529,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart15_default>;
 				interrupts = <GIC_SPI 360 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SDM845_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 		};
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 04/17] arm64: dts: sc7180: Add OPP table for all qup devices

[Rajendra Nayak]

qup has a requirement to vote on the performance state of the CX domain
in sc7180 devices. Add OPP tables for these and also add power-domains
property for all qup instances.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
---
 arch/arm64/boot/dts/qcom/sc7180.dtsi | 79 ++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index 998f101..efba600 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -417,6 +417,25 @@
 			status = "disabled";
 		};
 
+		qup_opp_table: qup-opp-table {
+			compatible = "operating-points-v2";
+
+			opp-75000000 {
+				opp-hz = /bits/ 64 <75000000>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+			};
+
+			opp-100000000 {
+				opp-hz = /bits/ 64 <100000000>;
+				required-opps = <&rpmhpd_opp_svs>;
+			};
+
+			opp-128000000 {
+				opp-hz = /bits/ 64 <128000000>;
+				required-opps = <&rpmhpd_opp_nom>;
+			};
+		};
+
 		qupv3_id_0: geniqup@8c0000 {
 			compatible = "qcom,geni-se-qup";
 			reg = <0 0x008c0000 0 0x6000>;
@@ -452,6 +471,8 @@
 				interrupts = <GIC_SPI 601 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -463,6 +484,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart0_default>;
 				interrupts = <GIC_SPI 601 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -476,6 +499,8 @@
 				interrupts = <GIC_SPI 602 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -489,6 +514,8 @@
 				interrupts = <GIC_SPI 602 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -500,6 +527,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart1_default>;
 				interrupts = <GIC_SPI 602 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -513,6 +542,8 @@
 				interrupts = <GIC_SPI 603 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -524,6 +555,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart2_default>;
 				interrupts = <GIC_SPI 603 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -537,6 +570,8 @@
 				interrupts = <GIC_SPI 604 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -550,6 +585,8 @@
 				interrupts = <GIC_SPI 604 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -561,6 +598,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart3_default>;
 				interrupts = <GIC_SPI 604 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -574,6 +613,8 @@
 				interrupts = <GIC_SPI 605 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -585,6 +626,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart4_default>;
 				interrupts = <GIC_SPI 605 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -598,6 +641,8 @@
 				interrupts = <GIC_SPI 606 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -611,6 +656,8 @@
 				interrupts = <GIC_SPI 606 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -622,6 +669,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart5_default>;
 				interrupts = <GIC_SPI 606 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 		};
@@ -661,6 +710,8 @@
 				interrupts = <GIC_SPI 353 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -672,6 +723,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart6_default>;
 				interrupts = <GIC_SPI 353 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -685,6 +738,8 @@
 				interrupts = <GIC_SPI 354 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -696,6 +751,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart7_default>;
 				interrupts = <GIC_SPI 354 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -709,6 +766,8 @@
 				interrupts = <GIC_SPI 355 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -722,6 +781,8 @@
 				interrupts = <GIC_SPI 355 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -733,6 +794,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart8_default>;
 				interrupts = <GIC_SPI 355 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -746,6 +809,8 @@
 				interrupts = <GIC_SPI 356 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -757,6 +822,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart9_default>;
 				interrupts = <GIC_SPI 356 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -770,6 +837,8 @@
 				interrupts = <GIC_SPI 357 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -783,6 +852,8 @@
 				interrupts = <GIC_SPI 357 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -794,6 +865,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart10_default>;
 				interrupts = <GIC_SPI 357 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -807,6 +880,8 @@
 				interrupts = <GIC_SPI 358 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -820,6 +895,8 @@
 				interrupts = <GIC_SPI 358 IRQ_TYPE_LEVEL_HIGH>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 
@@ -831,6 +908,8 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_uart11_default>;
 				interrupts = <GIC_SPI 358 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&rpmhpd SC7180_CX>;
+				operating-points-v2 = <&qup_opp_table>;
 				status = "disabled";
 			};
 		};
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 05/17] drm/msm/dpu: Use OPP API to set clk/perf state

[Rajendra Nayak]

On some qualcomm platforms DPU needs to express a perforamnce state
requirement on a power domain depennding on the clock rates.
Use OPP table from DT to register with OPP framework and use
dev_pm_opp_set_rate() to set the clk/perf state.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>
Cc: dri-devel@lists.freedesktop.org
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c |  3 ++-
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c       | 20 +++++++++++++++++++-
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h       |  4 ++++
 3 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
index 11f2beb..fe5717df 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
@@ -7,6 +7,7 @@
 #include <linux/debugfs.h>
 #include <linux/errno.h>
 #include <linux/mutex.h>
+#include <linux/pm_opp.h>
 #include <linux/sort.h>
 #include <linux/clk.h>
 #include <linux/bitmap.h>
@@ -239,7 +240,7 @@ static int _dpu_core_perf_set_core_clk_rate(struct dpu_kms *kms, u64 rate)
 		rate = core_clk->max_rate;
 
 	core_clk->rate = rate;
-	return msm_dss_clk_set_rate(core_clk, 1);
+	return dev_pm_opp_set_rate(&kms->pdev->dev, core_clk->rate);
 }
 
 static u64 _dpu_core_perf_get_core_clk_rate(struct dpu_kms *kms)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index ce19f1d..cfce642 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -10,6 +10,7 @@
 #include <linux/debugfs.h>
 #include <linux/dma-buf.h>
 #include <linux/of_irq.h>
+#include <linux/pm_opp.h>
 
 #include <drm/drm_crtc.h>
 #include <drm/drm_file.h>
@@ -1033,11 +1034,18 @@ static int dpu_bind(struct device *dev, struct device *master, void *data)
 	if (!dpu_kms)
 		return -ENOMEM;
 
+	dpu_kms->opp = dev_pm_opp_set_clkname(dev, "core");
+	if (IS_ERR(dpu_kms->opp))
+		return PTR_ERR(dpu_kms->opp);
+	/* OPP table is optional */
+	if (!dev_pm_opp_of_add_table(dev))
+		dpu_kms->opp_table = true;
+
 	mp = &dpu_kms->mp;
 	ret = msm_dss_parse_clock(pdev, mp);
 	if (ret) {
 		DPU_ERROR("failed to parse clocks, ret=%d\n", ret);
-		return ret;
+		goto err;
 	}
 
 	platform_set_drvdata(pdev, dpu_kms);
@@ -1051,6 +1059,11 @@ static int dpu_bind(struct device *dev, struct device *master, void *data)
 
 	priv->kms = &dpu_kms->base;
 	return ret;
+err:
+	if (dpu_kms->opp_table)
+		dev_pm_opp_of_remove_table(dev);
+	dev_pm_opp_put_clkname(dpu_kms->opp);
+	return ret;
 }
 
 static void dpu_unbind(struct device *dev, struct device *master, void *data)
@@ -1059,6 +1072,9 @@ static void dpu_unbind(struct device *dev, struct device *master, void *data)
 	struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
 	struct dss_module_power *mp = &dpu_kms->mp;
 
+	if (dpu_kms->opp_table)
+		dev_pm_opp_of_remove_table(dev);
+	dev_pm_opp_put_clkname(dpu_kms->opp);
 	msm_dss_put_clk(mp->clk_config, mp->num_clk);
 	devm_kfree(&pdev->dev, mp->clk_config);
 	mp->num_clk = 0;
@@ -1090,6 +1106,8 @@ static int __maybe_unused dpu_runtime_suspend(struct device *dev)
 	struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
 	struct dss_module_power *mp = &dpu_kms->mp;
 
+	/* Drop the performance state vote */
+	dev_pm_opp_set_rate(dev, 0);
 	rc = msm_dss_enable_clk(mp->clk_config, mp->num_clk, false);
 	if (rc)
 		DPU_ERROR("clock disable failed rc:%d\n", rc);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
index 211f5de9..0060709 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
@@ -128,6 +128,10 @@ struct dpu_kms {
 
 	struct platform_device *pdev;
 	bool rpm_enabled;
+
+	struct opp_table *opp;
+	bool opp_table;
+
 	struct dss_module_power mp;
 
 	/* reference count bandwidth requests, so we know when we can
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 06/17] drm/msm: dsi: Use OPP API to set clk/perf state

[Rajendra Nayak]

On SDM845 DSI needs to express a perforamnce state
requirement on a power domain depending on the clock rates.
Use OPP table from DT to register with OPP framework and use
dev_pm_opp_set_rate() to set the clk/perf state.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>
Cc: dri-devel@lists.freedesktop.org
---
 drivers/gpu/drm/msm/dsi/dsi.h      |  2 ++
 drivers/gpu/drm/msm/dsi/dsi_cfg.c  |  4 +--
 drivers/gpu/drm/msm/dsi/dsi_host.c | 53 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 57 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h
index 4de771d..ba7583c 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.h
+++ b/drivers/gpu/drm/msm/dsi/dsi.h
@@ -180,10 +180,12 @@ int msm_dsi_runtime_suspend(struct device *dev);
 int msm_dsi_runtime_resume(struct device *dev);
 int dsi_link_clk_set_rate_6g(struct msm_dsi_host *msm_host);
 int dsi_link_clk_set_rate_v2(struct msm_dsi_host *msm_host);
+int dsi_link_clk_set_rate_6g_v2(struct msm_dsi_host *msm_host);
 int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host);
 int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host);
 void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host);
 void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host);
+void dsi_link_clk_disable_6g_v2(struct msm_dsi_host *msm_host);
 int dsi_tx_buf_alloc_6g(struct msm_dsi_host *msm_host, int size);
 int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size);
 void *dsi_tx_buf_get_6g(struct msm_dsi_host *msm_host);
diff --git a/drivers/gpu/drm/msm/dsi/dsi_cfg.c b/drivers/gpu/drm/msm/dsi/dsi_cfg.c
index 813d69d..773c4fe 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_cfg.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_cfg.c
@@ -210,9 +210,9 @@ static const struct msm_dsi_host_cfg_ops msm_dsi_6g_host_ops = {
 };
 
 static const struct msm_dsi_host_cfg_ops msm_dsi_6g_v2_host_ops = {
-	.link_clk_set_rate = dsi_link_clk_set_rate_6g,
+	.link_clk_set_rate = dsi_link_clk_set_rate_6g_v2,
 	.link_clk_enable = dsi_link_clk_enable_6g,
-	.link_clk_disable = dsi_link_clk_disable_6g,
+	.link_clk_disable = dsi_link_clk_disable_6g_v2,
 	.clk_init_ver = dsi_clk_init_6g_v2,
 	.tx_buf_alloc = dsi_tx_buf_alloc_6g,
 	.tx_buf_get = dsi_tx_buf_get_6g,
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 11ae5b8..d532fab 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -14,6 +14,7 @@
 #include <linux/of_graph.h>
 #include <linux/of_irq.h>
 #include <linux/pinctrl/consumer.h>
+#include <linux/pm_opp.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/spinlock.h>
@@ -111,6 +112,9 @@ struct msm_dsi_host {
 	struct clk *pixel_clk_src;
 	struct clk *byte_intf_clk;
 
+	struct opp_table *opp;
+	bool opp_table;
+
 	u32 byte_clk_rate;
 	u32 pixel_clk_rate;
 	u32 esc_clk_rate;
@@ -537,6 +541,38 @@ int dsi_link_clk_set_rate_6g(struct msm_dsi_host *msm_host)
 	return 0;
 }
 
+int dsi_link_clk_set_rate_6g_v2(struct msm_dsi_host *msm_host)
+{
+	int ret;
+	struct device *dev = &msm_host->pdev->dev;
+
+	DBG("Set clk rates: pclk=%d, byteclk=%d",
+		msm_host->mode->clock, msm_host->byte_clk_rate);
+
+	ret = dev_pm_opp_set_rate(dev, msm_host->byte_clk_rate);
+	if (ret) {
+		pr_err("%s: dev_pm_opp_set_rate failed %d\n", __func__, ret);
+		return ret;
+	}
+
+	ret = clk_set_rate(msm_host->pixel_clk, msm_host->pixel_clk_rate);
+	if (ret) {
+		pr_err("%s: Failed to set rate pixel clk, %d\n", __func__, ret);
+		return ret;
+	}
+
+	if (msm_host->byte_intf_clk) {
+		ret = clk_set_rate(msm_host->byte_intf_clk,
+				   msm_host->byte_clk_rate / 2);
+		if (ret) {
+			pr_err("%s: Failed to set rate byte intf clk, %d\n",
+			       __func__, ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
 
 int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host)
 {
@@ -665,6 +701,13 @@ void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host)
 	clk_disable_unprepare(msm_host->byte_clk);
 }
 
+void dsi_link_clk_disable_6g_v2(struct msm_dsi_host *msm_host)
+{
+	/* Drop the performance state vote */
+	dev_pm_opp_set_rate(&msm_host->pdev->dev, 0);
+	dsi_link_clk_disable_6g(msm_host);
+}
+
 void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host)
 {
 	clk_disable_unprepare(msm_host->pixel_clk);
@@ -1879,6 +1922,13 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi)
 		goto fail;
 	}
 
+	msm_host->opp = dev_pm_opp_set_clkname(&pdev->dev, "byte");
+	if (IS_ERR(msm_host->opp))
+		return PTR_ERR(msm_host->opp);
+	/* OPP table is optional */
+	if (!dev_pm_opp_of_add_table(&pdev->dev))
+		msm_host->opp_table = true;
+
 	init_completion(&msm_host->dma_comp);
 	init_completion(&msm_host->video_comp);
 	mutex_init(&msm_host->dev_mutex);
@@ -1904,6 +1954,9 @@ void msm_dsi_host_destroy(struct mipi_dsi_host *host)
 	struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
 
 	DBG("");
+	if (msm_host->opp_table)
+		dev_pm_opp_of_remove_table(&msm_host->pdev->dev);
+	dev_pm_opp_put_clkname(msm_host->opp);
 	dsi_tx_buf_free(msm_host);
 	if (msm_host->workqueue) {
 		flush_workqueue(msm_host->workqueue);
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 07/17] arm64: dts: sdm845: Add DSI and MDP OPP tables and power-domains

[Rajendra Nayak]

Add the OPP tables for DSI and MDP based on the perf state/clk
requirements, and add the power-domains property to specify the
scalable power domain.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
---
 arch/arm64/boot/dts/qcom/sdm845.dtsi | 59 ++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 36b9fb1..7a625ad 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -3309,6 +3309,59 @@
 			#reset-cells = <1>;
 		};
 
+		mdp_opp_table: mdp-opp-table {
+			compatible = "operating-points-v2";
+
+			opp-19200000 {
+				opp-hz = /bits/ 64 <19200000>;
+				required-opps = <&rpmhpd_opp_min_svs>;
+			};
+
+			opp-171428571 {
+				opp-hz = /bits/ 64 <171428571>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+			};
+
+			opp-344000000 {
+				opp-hz = /bits/ 64 <344000000>;
+				required-opps = <&rpmhpd_opp_svs_l1>;
+			};
+
+			opp-430000000 {
+				opp-hz = /bits/ 64 <430000000>;
+				required-opps = <&rpmhpd_opp_nom>;
+			};
+		};
+
+		dsi_opp_table: dsi-opp-table {
+			compatible = "operating-points-v2";
+
+			opp-19200000 {
+				opp-hz = /bits/ 64 <19200000>;
+				required-opps = <&rpmhpd_opp_min_svs>;
+			};
+
+			opp-180000000 {
+				opp-hz = /bits/ 64 <180000000>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+			};
+
+			opp-275000000 {
+				opp-hz = /bits/ 64 <275000000>;
+				required-opps = <&rpmhpd_opp_svs>;
+			};
+
+			opp-328580000 {
+				opp-hz = /bits/ 64 <328580000>;
+				required-opps = <&rpmhpd_opp_svs_l1>;
+			};
+
+			opp-358000000 {
+				opp-hz = /bits/ 64 <358000000>;
+				required-opps = <&rpmhpd_opp_nom>;
+			};
+		};
+
 		mdss: mdss@ae00000 {
 			compatible = "qcom,sdm845-mdss";
 			reg = <0 0x0ae00000 0 0x1000>;
@@ -3353,6 +3406,8 @@
 						  <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
 				assigned-clock-rates = <300000000>,
 						       <19200000>;
+				operating-points-v2 = <&mdp_opp_table>;
+				power-domains = <&rpmhpd SDM845_CX>;
 
 				interrupt-parent = <&mdss>;
 				interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
@@ -3399,6 +3454,8 @@
 					      "core",
 					      "iface",
 					      "bus";
+				operating-points-v2 = <&dsi_opp_table>;
+				power-domains = <&rpmhpd SDM845_CX>;
 
 				phys = <&dsi0_phy>;
 				phy-names = "dsi";
@@ -3463,6 +3520,8 @@
 					      "core",
 					      "iface",
 					      "bus";
+				operating-points-v2 = <&dsi_opp_table>;
+				power-domains = <&rpmhpd SDM845_CX>;
 
 				phys = <&dsi1_phy>;
 				phy-names = "dsi";
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 08/17] arm64: dts: sc7180: Add DSI and MDP OPP tables and power-domains

[Rajendra Nayak]

Add the OPP tables for DSI and MDP based on the perf state/clk
requirements, and add the power-domains property to specify the
scalable power domain.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
---
 arch/arm64/boot/dts/qcom/sc7180.dtsi | 48 ++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index efba600..db5b3b3 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -1581,6 +1581,49 @@
 			qcom,bcm-voters = <&apps_bcm_voter>;
 		};
 
+		mdp_opp_table: mdp-opp-table {
+			compatible = "operating-points-v2";
+
+			opp-200000000 {
+				opp-hz = /bits/ 64 <200000000>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+			};
+
+			opp-300000000 {
+				opp-hz = /bits/ 64 <300000000>;
+				required-opps = <&rpmhpd_opp_svs>;
+			};
+
+			opp-345000000 {
+				opp-hz = /bits/ 64 <345000000>;
+				required-opps = <&rpmhpd_opp_svs_l1>;
+			};
+
+			opp-460000000 {
+				opp-hz = /bits/ 64 <460000000>;
+				required-opps = <&rpmhpd_opp_nom>;
+			};
+		};
+
+		dsi_opp_table: dsi-opp-table {
+			compatible = "operating-points-v2";
+
+			opp-187500000 {
+				opp-hz = /bits/ 64 <187500000>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+			};
+
+			opp-300000000 {
+				opp-hz = /bits/ 64 <300000000>;
+				required-opps = <&rpmhpd_opp_svs>;
+			};
+
+			opp-358000000 {
+				opp-hz = /bits/ 64 <358000000>;
+				required-opps = <&rpmhpd_opp_svs_l1>;
+			};
+		};
+
 		mdss: mdss@ae00000 {
 			compatible = "qcom,sc7180-mdss";
 			reg = <0 0x0ae00000 0 0x1000>;
@@ -1626,6 +1669,8 @@
 						  <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
 				assigned-clock-rates = <300000000>,
 						       <19200000>;
+				operating-points-v2 = <&mdp_opp_table>;
+				power-domains = <&rpmhpd SC7180_CX>;
 
 				interrupt-parent = <&mdss>;
 				interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
@@ -1666,6 +1711,9 @@
 					      "iface",
 					      "bus";
 
+				operating-points-v2 = <&dsi_opp_table>;
+				power-domains = <&rpmhpd SC7180_CX>;
+
 				phys = <&dsi_phy>;
 				phy-names = "dsi";
 
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 09/17] mmc: sdhci-msm: Use OPP API to set clk/perf state

[Rajendra Nayak]

On some qualcomm SoCs we need to vote on a performance state of a power
domain depending on the clock rates. Hence move to using OPP api to set
the clock rate and performance state specified in the OPP table.
On platforms without an OPP table, dev_pm_opp_set_rate() is eqvivalent to
clk_set_rate()

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Pradeep P V K <ppvk@codeaurora.org>
Cc: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
Cc: linux-mmc@vger.kernel.org
---
 drivers/mmc/host/sdhci-msm.c | 34 +++++++++++++++++++++++++++++-----
 1 file changed, 29 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index 09ff731..cf27480 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -10,6 +10,7 @@
 #include <linux/delay.h>
 #include <linux/mmc/mmc.h>
 #include <linux/pm_runtime.h>
+#include <linux/pm_opp.h>
 #include <linux/slab.h>
 #include <linux/iopoll.h>
 #include <linux/regulator/consumer.h>
@@ -243,6 +244,8 @@ struct sdhci_msm_host {
 	struct clk_bulk_data bulk_clks[4]; /* core, iface, cal, sleep clocks */
 	unsigned long clk_rate;
 	struct mmc_host *mmc;
+	struct opp_table *opp;
+	bool opp_table;
 	bool use_14lpp_dll_reset;
 	bool tuning_done;
 	bool calibration_done;
@@ -332,7 +335,7 @@ static void msm_set_clock_rate_for_bus_mode(struct sdhci_host *host,
 	int rc;
 
 	clock = msm_get_clock_rate_for_bus_mode(host, clock);
-	rc = clk_set_rate(core_clk, clock);
+	rc = dev_pm_opp_set_rate(mmc_dev(host->mmc), clock);
 	if (rc) {
 		pr_err("%s: Failed to set clock at rate %u at timing %d\n",
 		       mmc_hostname(host->mmc), clock,
@@ -1962,8 +1965,18 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 	}
 	msm_host->bulk_clks[0].clk = clk;
 
+	msm_host->opp = dev_pm_opp_set_clkname(&pdev->dev, "core");
+	if (IS_ERR(msm_host->opp)) {
+		ret = PTR_ERR(msm_host->opp);
+		goto bus_clk_disable;
+	}
+
+	/* OPP table is optional */
+	if (!dev_pm_opp_of_add_table(&pdev->dev))
+		msm_host->opp_table = true;
+
 	/* Vote for maximum clock rate for maximum performance */
-	ret = clk_set_rate(clk, INT_MAX);
+	ret = dev_pm_opp_set_rate(&pdev->dev, INT_MAX);
 	if (ret)
 		dev_warn(&pdev->dev, "core clock boost failed\n");
 
@@ -1980,7 +1993,7 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 	ret = clk_bulk_prepare_enable(ARRAY_SIZE(msm_host->bulk_clks),
 				      msm_host->bulk_clks);
 	if (ret)
-		goto bus_clk_disable;
+		goto opp_cleanup;
 
 	/*
 	 * xo clock is needed for FLL feature of cm_dll.
@@ -2115,6 +2128,10 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 clk_disable:
 	clk_bulk_disable_unprepare(ARRAY_SIZE(msm_host->bulk_clks),
 				   msm_host->bulk_clks);
+opp_cleanup:
+	if (msm_host->opp_table)
+		dev_pm_opp_of_remove_table(&pdev->dev);
+	dev_pm_opp_put_clkname(msm_host->opp);
 bus_clk_disable:
 	if (!IS_ERR(msm_host->bus_clk))
 		clk_disable_unprepare(msm_host->bus_clk);
@@ -2133,6 +2150,9 @@ static int sdhci_msm_remove(struct platform_device *pdev)
 
 	sdhci_remove_host(host, dead);
 
+	if (msm_host->opp_table)
+		dev_pm_opp_of_remove_table(&pdev->dev);
+	dev_pm_opp_put_clkname(msm_host->opp);
 	pm_runtime_get_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
@@ -2151,6 +2171,8 @@ static __maybe_unused int sdhci_msm_runtime_suspend(struct device *dev)
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
 
+	/* Drop the performance vote */
+	dev_pm_opp_set_rate(dev, 0);
 	clk_bulk_disable_unprepare(ARRAY_SIZE(msm_host->bulk_clks),
 				   msm_host->bulk_clks);
 
@@ -2173,9 +2195,11 @@ static __maybe_unused int sdhci_msm_runtime_resume(struct device *dev)
 	 * restore the SDR DLL settings when the clock is ungated.
 	 */
 	if (msm_host->restore_dll_config && msm_host->clk_rate)
-		return sdhci_msm_restore_sdr_dll_config(host);
+		ret = sdhci_msm_restore_sdr_dll_config(host);
 
-	return 0;
+	dev_pm_opp_set_rate(dev, msm_host->clk_rate);
+
+	return ret;
 }
 
 static const struct dev_pm_ops sdhci_msm_pm_ops = {
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 10/17] arm64: dts: sdm845: Add sdhc opps and power-domains

[Rajendra Nayak]

Add the power domain supporting performance state and the corresponding
OPP tables for the sdhc device on sdm845.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
---
 arch/arm64/boot/dts/qcom/sdm845.dtsi | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 7a625ad..e6f1af1 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -2975,6 +2975,30 @@
 			};
 		};
 
+		sdhc2_opp_table: sdhc2-opp-table {
+			compatible = "operating-points-v2";
+
+			opp-9600000 {
+				opp-hz = /bits/ 64 <9600000>;
+				required-opps = <&rpmhpd_opp_min_svs>;
+			};
+
+			opp-19200000 {
+				opp-hz = /bits/ 64 <19200000>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+			};
+
+			opp-100000000 {
+				opp-hz = /bits/ 64 <100000000>;
+				required-opps = <&rpmhpd_opp_svs>;
+			};
+
+			opp-201500000 {
+				opp-hz = /bits/ 64 <201500000>;
+				required-opps = <&rpmhpd_opp_svs_l1>;
+			};
+		};
+
 		sdhc_2: sdhci@8804000 {
 			compatible = "qcom,sdm845-sdhci", "qcom,sdhci-msm-v5";
 			reg = <0 0x08804000 0 0x1000>;
@@ -2987,6 +3011,8 @@
 				 <&gcc GCC_SDCC2_APPS_CLK>;
 			clock-names = "iface", "core";
 			iommus = <&apps_smmu 0xa0 0xf>;
+			power-domains = <&rpmhpd SDM845_CX>;
+			operating-points-v2 = <&sdhc2_opp_table>;
 
 			status = "disabled";
 		};
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 11/17] arm64: dts: sc7180: Add sdhc opps and power-domains

[Rajendra Nayak]

Add the power domain supporting performance state and the corresponding
OPP tables for the sdhc device on sdm845.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
---
 arch/arm64/boot/dts/qcom/sc7180.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index db5b3b3..bcd0e6f 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -390,6 +390,20 @@
 			};
 		};
 
+		sdhc1_opp_table: sdhc1-opp-table {
+			compatible = "operating-points-v2";
+
+			opp-100000000 {
+				opp-hz = /bits/ 64 <100000000>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+			};
+
+			opp-384000000 {
+				opp-hz = /bits/ 64 <384000000>;
+				required-opps = <&rpmhpd_opp_svs_l1>;
+			};
+		};
+
 		sdhc_1: sdhci@7c4000 {
 			compatible = "qcom,sc7180-sdhci", "qcom,sdhci-msm-v5";
 			reg = <0 0x7c4000 0 0x1000>,
@@ -404,6 +418,8 @@
 			clocks = <&gcc GCC_SDCC1_APPS_CLK>,
 					<&gcc GCC_SDCC1_AHB_CLK>;
 			clock-names = "core", "iface";
+			power-domains = <&rpmhpd SC7180_CX>;
+			operating-points-v2 = <&sdhc1_opp_table>;
 
 			bus-width = <8>;
 			non-removable;
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 12/17] media: venus: core: Add support for opp tables/perf voting

[Rajendra Nayak]

Add support to add OPP tables and perf voting on the OPP powerdomain.
This is needed so venus votes on the corresponding performance state
for the OPP powerdomain along with setting the core clock rate.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Cc: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Cc: linux-media@vger.kernel.org
---
 drivers/media/platform/qcom/venus/core.c       | 21 +++++++++++++++
 drivers/media/platform/qcom/venus/core.h       |  5 ++++
 drivers/media/platform/qcom/venus/pm_helpers.c | 37 +++++++++++++++++++++++---
 3 files changed, 59 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 194b10b9..0d1ef88 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -12,6 +12,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/types.h>
+#include <linux/pm_opp.h>
 #include <linux/pm_runtime.h>
 #include <media/videobuf2-v4l2.h>
 #include <media/v4l2-mem2mem.h>
@@ -250,6 +251,13 @@ static int venus_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
+	core->opp = dev_pm_opp_set_clkname(dev, "core");
+	if (IS_ERR(core->opp))
+		return PTR_ERR(core->opp);
+
+	if (core->opp_pmdomain && !dev_pm_opp_of_add_table(dev))
+		core->opp_table = true;
+
 	pm_runtime_enable(dev);
 
 	ret = pm_runtime_get_sync(dev);
@@ -301,6 +309,9 @@ static int venus_probe(struct platform_device *pdev)
 err_venus_shutdown:
 	venus_shutdown(core);
 err_runtime_disable:
+	if (core->opp_pmdomain && core->opp_table)
+		dev_pm_opp_of_remove_table(dev);
+	dev_pm_opp_put_clkname(core->opp);
 	pm_runtime_set_suspended(dev);
 	pm_runtime_disable(dev);
 	hfi_destroy(core);
@@ -326,6 +337,10 @@ static int venus_remove(struct platform_device *pdev)
 
 	venus_firmware_deinit(core);
 
+	if (core->opp_pmdomain && core->opp_table)
+		dev_pm_opp_of_remove_table(dev);
+	dev_pm_opp_put_clkname(core->opp);
+
 	pm_runtime_put_sync(dev);
 	pm_runtime_disable(dev);
 
@@ -350,6 +365,10 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
 	if (ret)
 		return ret;
 
+	/* Drop the performance state vote */
+	if (core->opp_pmdomain)
+		dev_pm_opp_set_rate(dev, 0);
+
 	if (pm_ops->core_power)
 		ret = pm_ops->core_power(dev, POWER_OFF);
 
@@ -511,6 +530,7 @@ static const struct venus_resources sdm845_res_v2 = {
 	.vcodec_clks_num = 2,
 	.vcodec_pmdomains = { "venus", "vcodec0", "vcodec1" },
 	.vcodec_pmdomains_num = 3,
+	.opp_pmdomain = (const char *[]) { "opp-pd", NULL },
 	.vcodec_num = 2,
 	.max_load = 3110400,	/* 4096x2160@90 */
 	.hfi_version = HFI_VERSION_4XX,
@@ -556,6 +576,7 @@ static const struct venus_resources sc7180_res = {
 	.vcodec_clks_num = 2,
 	.vcodec_pmdomains = { "venus", "vcodec0" },
 	.vcodec_pmdomains_num = 2,
+	.opp_pmdomain = (const char *[]) { "opp-pd", NULL },
 	.vcodec_num = 1,
 	.hfi_version = HFI_VERSION_4XX,
 	.vmem_id = VIDC_RESOURCE_NONE,
diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
index bd3ac6a..e583ee3 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -62,6 +62,7 @@ struct venus_resources {
 	unsigned int vcodec_clks_num;
 	const char * const vcodec_pmdomains[VIDC_PMDOMAINS_NUM_MAX];
 	unsigned int vcodec_pmdomains_num;
+	const char **opp_pmdomain;
 	unsigned int vcodec_num;
 	enum hfi_version hfi_version;
 	u32 max_load;
@@ -144,8 +145,12 @@ struct venus_core {
 	struct clk *vcodec1_clks[VIDC_VCODEC_CLKS_NUM_MAX];
 	struct icc_path *video_path;
 	struct icc_path *cpucfg_path;
+	struct opp_table *opp;
+	bool opp_table;
 	struct device_link *pd_dl_venus;
 	struct device *pmdomains[VIDC_PMDOMAINS_NUM_MAX];
+	struct device_link *opp_dl_venus;
+	struct device *opp_pmdomain;
 	struct video_device *vdev_dec;
 	struct video_device *vdev_enc;
 	struct v4l2_device v4l2_dev;
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index abf9315..b81592f 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -9,6 +9,7 @@
 #include <linux/iopoll.h>
 #include <linux/kernel.h>
 #include <linux/pm_domain.h>
+#include <linux/pm_opp.h>
 #include <linux/pm_runtime.h>
 #include <linux/types.h>
 #include <media/v4l2-mem2mem.h>
@@ -66,10 +67,9 @@ static void core_clks_disable(struct venus_core *core)
 
 static int core_clks_set_rate(struct venus_core *core, unsigned long freq)
 {
-	struct clk *clk = core->clks[0];
 	int ret;
 
-	ret = clk_set_rate(clk, freq);
+	ret = dev_pm_opp_set_rate(core->dev, freq);
 	if (ret)
 		return ret;
 
@@ -740,13 +740,15 @@ static int venc_power_v4(struct device *dev, int on)
 
 static int vcodec_domains_get(struct device *dev)
 {
+	struct opp_table *opp;
+	struct device **opp_virt_dev;
 	struct venus_core *core = dev_get_drvdata(dev);
 	const struct venus_resources *res = core->res;
 	struct device *pd;
 	unsigned int i;
 
 	if (!res->vcodec_pmdomains_num)
-		return -ENODEV;
+		goto skip_pmdomains;
 
 	for (i = 0; i < res->vcodec_pmdomains_num; i++) {
 		pd = dev_pm_domain_attach_by_name(dev,
@@ -763,6 +765,24 @@ static int vcodec_domains_get(struct device *dev)
 	if (!core->pd_dl_venus)
 		return -ENODEV;
 
+skip_pmdomains:
+	if (!res->opp_pmdomain)
+		return 0;
+
+	/* Attach the power domain for setting performance state */
+	opp = dev_pm_opp_attach_genpd(dev, res->opp_pmdomain, &opp_virt_dev);
+	if (IS_ERR(opp)) {
+		return PTR_ERR(opp);
+	} else if (opp_virt_dev) {
+		core->opp_pmdomain = *opp_virt_dev;
+		core->opp_dl_venus = device_link_add(dev, core->opp_pmdomain,
+						     DL_FLAG_RPM_ACTIVE |
+						     DL_FLAG_PM_RUNTIME |
+						     DL_FLAG_STATELESS);
+		if (!core->opp_dl_venus)
+			return -ENODEV;
+	}
+
 	return 0;
 }
 
@@ -773,7 +793,7 @@ static void vcodec_domains_put(struct device *dev)
 	unsigned int i;
 
 	if (!res->vcodec_pmdomains_num)
-		return;
+		goto skip_pmdomains;
 
 	if (core->pd_dl_venus)
 		device_link_del(core->pd_dl_venus);
@@ -783,6 +803,15 @@ static void vcodec_domains_put(struct device *dev)
 			continue;
 		dev_pm_domain_detach(core->pmdomains[i], true);
 	}
+
+skip_pmdomains:
+	if (!res->opp_pmdomain)
+		return;
+
+	if (core->opp_dl_venus)
+		device_link_del(core->opp_dl_venus);
+
+	dev_pm_domain_detach(core->opp_pmdomain, true);
 }
 
 static int core_get_v4(struct device *dev)
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 13/17] arm64: dts: sdm845: Add OPP tables and power-domains for venus

[Rajendra Nayak]

Add the OPP tables in order to be able to vote on the performance state of
a power-domain.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
---
 arch/arm64/boot/dts/qcom/sdm845.dtsi | 40 ++++++++++++++++++++++++++++++++++--
 1 file changed, 38 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index e6f1af1..67e3b90 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -3294,14 +3294,50 @@
 			};
 		};
 
+		venus_opp_table: venus-opp-table {
+			compatible = "operating-points-v2";
+
+			opp-100000000 {
+				opp-hz = /bits/ 64 <100000000>;
+				required-opps = <&rpmhpd_opp_min_svs>;
+			};
+
+			opp-200000000 {
+				opp-hz = /bits/ 64 <200000000>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+			};
+
+			opp-320000000 {
+				opp-hz = /bits/ 64 <320000000>;
+				required-opps = <&rpmhpd_opp_svs>;
+			};
+
+			opp-380000000 {
+				opp-hz = /bits/ 64 <380000000>;
+				required-opps = <&rpmhpd_opp_svs_l1>;
+			};
+
+			opp-444000000 {
+				opp-hz = /bits/ 64 <444000000>;
+				required-opps = <&rpmhpd_opp_nom>;
+			};
+
+			opp-533000000 {
+				opp-hz = /bits/ 64 <533000000>;
+				required-opps = <&rpmhpd_opp_turbo>;
+			};
+		};
+
 		venus: video-codec@aa00000 {
 			compatible = "qcom,sdm845-venus-v2";
 			reg = <0 0x0aa00000 0 0xff000>;
 			interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
 			power-domains = <&videocc VENUS_GDSC>,
 					<&videocc VCODEC0_GDSC>,
-					<&videocc VCODEC1_GDSC>;
-			power-domain-names = "venus", "vcodec0", "vcodec1";
+					<&videocc VCODEC1_GDSC>,
+					<&rpmhpd SDM845_CX>;
+			power-domain-names = "venus", "vcodec0", "vcodec1", "opp-pd";
+			operating-points-v2 = <&venus_opp_table>;
 			clocks = <&videocc VIDEO_CC_VENUS_CTL_CORE_CLK>,
 				 <&videocc VIDEO_CC_VENUS_AHB_CLK>,
 				 <&videocc VIDEO_CC_VENUS_CTL_AXI_CLK>,
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 14/17] arm64: dts: sc7180: Add OPP tables and power-domains for venus

[Rajendra Nayak]

Add the OPP tables in order to be able to vote on the performance state
of a power-domain

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
---
 arch/arm64/boot/dts/qcom/sc7180.dtsi | 35 +++++++++++++++++++++++++++++++++--
 1 file changed, 33 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index bcd0e6f..b87f3eb 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -1554,13 +1554,44 @@
 			};
 		};
 
+		venus_opp_table: venus-opp-table {
+			compatible = "operating-points-v2";
+
+			opp-200000000 {
+				opp-hz = /bits/ 64 <150000000>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+			};
+
+			opp-320000000 {
+				opp-hz = /bits/ 64 <270000000>;
+				required-opps = <&rpmhpd_opp_svs>;
+			};
+
+			opp-380000000 {
+				opp-hz = /bits/ 64 <340000000>;
+				required-opps = <&rpmhpd_opp_svs_l1>;
+			};
+
+			opp-444000000 {
+				opp-hz = /bits/ 64 <434000000>;
+				required-opps = <&rpmhpd_opp_nom>;
+			};
+
+			opp-533000000 {
+				opp-hz = /bits/ 64 <500000000>;
+				required-opps = <&rpmhpd_opp_turbo>;
+			};
+		};
+
 		venus: video-codec@aa00000 {
 			compatible = "qcom,sc7180-venus";
 			reg = <0 0x0aa00000 0 0xff000>;
 			interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
 			power-domains = <&videocc VENUS_GDSC>,
-					<&videocc VCODEC0_GDSC>;
-			power-domain-names = "venus", "vcodec0";
+					<&videocc VCODEC0_GDSC>,
+					<&rpmhpd SC7180_CX>;
+			power-domain-names = "venus", "vcodec0", "opp-pd";
+			operating-points-v2 = <&venus_opp_table>;
 			clocks = <&videocc VIDEO_CC_VENUS_CTL_CORE_CLK>,
 				 <&videocc VIDEO_CC_VENUS_AHB_CLK>,
 				 <&videocc VIDEO_CC_VENUS_CTL_AXI_CLK>,
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 15/17] spi: spi-qcom-qspi: Use OPP API to set clk/perf state

[Rajendra Nayak]

QSPI needs to vote on a performance state of a power domain depending on
the clock rate. Add support for it by specifying the perf state/clock rate
as an OPP table in device tree.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Alok Chauhan <alokc@codeaurora.org>
Cc: Akash Asthana <akashast@codeaurora.org>
Cc: linux-spi@vger.kernel.org
---
 drivers/spi/spi-qcom-qspi.c | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-qcom-qspi.c b/drivers/spi/spi-qcom-qspi.c
index 3c4f83b..7c7bd18 100644
--- a/drivers/spi/spi-qcom-qspi.c
+++ b/drivers/spi/spi-qcom-qspi.c
@@ -8,6 +8,7 @@
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/pm_runtime.h>
+#include <linux/pm_opp.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/spi-mem.h>
 
@@ -139,6 +140,8 @@ struct qcom_qspi {
 	struct device *dev;
 	struct clk_bulk_data *clks;
 	struct qspi_xfer xfer;
+	struct opp_table *opp;
+	bool opp_table;
 	/* Lock to protect xfer and IRQ accessed registers */
 	spinlock_t lock;
 };
@@ -235,7 +238,7 @@ static int qcom_qspi_transfer_one(struct spi_master *master,
 		speed_hz = xfer->speed_hz;
 
 	/* In regular operation (SBL_EN=1) core must be 4x transfer clock */
-	ret = clk_set_rate(ctrl->clks[QSPI_CLK_CORE].clk, speed_hz * 4);
+	ret = dev_pm_opp_set_rate(ctrl->dev, speed_hz * 4);
 	if (ret) {
 		dev_err(ctrl->dev, "Failed to set core clk %d\n", ret);
 		return ret;
@@ -481,6 +484,15 @@ static int qcom_qspi_probe(struct platform_device *pdev)
 	master->handle_err = qcom_qspi_handle_err;
 	master->auto_runtime_pm = true;
 
+	ctrl->opp = dev_pm_opp_set_clkname(&pdev->dev, "core");
+	if (IS_ERR(ctrl->opp)) {
+		ret = PTR_ERR(ctrl->opp);
+		goto exit_probe_master_put;
+	}
+	/* OPP table is optional */
+	if (!dev_pm_opp_of_add_table(&pdev->dev))
+		ctrl->opp_table = true;
+
 	pm_runtime_enable(dev);
 
 	ret = spi_register_master(master);
@@ -488,6 +500,9 @@ static int qcom_qspi_probe(struct platform_device *pdev)
 		return 0;
 
 	pm_runtime_disable(dev);
+	if (ctrl->opp_table)
+		dev_pm_opp_of_remove_table(&pdev->dev);
+	dev_pm_opp_put_clkname(ctrl->opp);
 
 exit_probe_master_put:
 	spi_master_put(master);
@@ -498,6 +513,11 @@ static int qcom_qspi_probe(struct platform_device *pdev)
 static int qcom_qspi_remove(struct platform_device *pdev)
 {
 	struct spi_master *master = platform_get_drvdata(pdev);
+	struct qcom_qspi *ctrl = spi_master_get_devdata(master);
+
+	if (ctrl->opp_table)
+		dev_pm_opp_of_remove_table(&pdev->dev);
+	dev_pm_opp_put_clkname(ctrl->opp);
 
 	/* Unregister _before_ disabling pm_runtime() so we stop transfers */
 	spi_unregister_master(master);
@@ -512,6 +532,8 @@ static int __maybe_unused qcom_qspi_runtime_suspend(struct device *dev)
 	struct spi_master *master = dev_get_drvdata(dev);
 	struct qcom_qspi *ctrl = spi_master_get_devdata(master);
 
+	/* Drop the performance state vote */
+	dev_pm_opp_set_rate(dev, 0);
 	clk_bulk_disable_unprepare(QSPI_NUM_CLKS, ctrl->clks);
 
 	return 0;
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 16/17] arm64: dts: sdm845: Add qspi opps and power-domains

[Rajendra Nayak]

Add the power domain supporting performance state and the corresponding
OPP tables for the qspi device on sdm845

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
---
 arch/arm64/boot/dts/qcom/sdm845.dtsi | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 67e3b90..1843123 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -3017,6 +3017,30 @@
 			status = "disabled";
 		};
 
+		qspi_opp_table: qspi-opp-table {
+			compatible = "operating-points-v2";
+
+			opp-19200000 {
+				opp-hz = /bits/ 64 <19200000>;
+				required-opps = <&rpmhpd_opp_min_svs>;
+			};
+
+			opp-100000000 {
+				opp-hz = /bits/ 64 <100000000>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+			};
+
+			opp-150000000 {
+				opp-hz = /bits/ 64 <150000000>;
+				required-opps = <&rpmhpd_opp_svs>;
+			};
+
+			opp-300000000 {
+				opp-hz = /bits/ 64 <300000000>;
+				required-opps = <&rpmhpd_opp_nom>;
+			};
+		};
+
 		qspi: spi@88df000 {
 			compatible = "qcom,sdm845-qspi", "qcom,qspi-v1";
 			reg = <0 0x088df000 0 0x600>;
@@ -3026,6 +3050,8 @@
 			clocks = <&gcc GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
 				 <&gcc GCC_QSPI_CORE_CLK>;
 			clock-names = "iface", "core";
+			power-domains = <&rpmhpd SDM845_CX>;
+			operating-points-v2 = <&qspi_opp_table>;
 			status = "disabled";
 		};
 
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

[PATCH v2 17/17] arm64: dts: sc7180: Add qspi opps and power-domains

[Rajendra Nayak]

Add the power domain supporting performance state and the corresponding
OPP tables for the qspi device on sc7180

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
---
 arch/arm64/boot/dts/qcom/sc7180.dtsi | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index b87f3eb..c340a63 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -1421,6 +1421,25 @@
 			#power-domain-cells = <1>;
 		};
 
+		qspi_opp_table: qspi-opp-table {
+			compatible = "operating-points-v2";
+
+			opp-75000000 {
+				opp-hz = /bits/ 64 <75000000>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+			};
+
+			opp-150000000 {
+				opp-hz = /bits/ 64 <150000000>;
+				required-opps = <&rpmhpd_opp_svs>;
+			};
+
+			opp-300000000 {
+				opp-hz = /bits/ 64 <300000000>;
+				required-opps = <&rpmhpd_opp_nom>;
+			};
+		};
+
 		qspi: spi@88dc000 {
 			compatible = "qcom,qspi-v1";
 			reg = <0 0x088dc000 0 0x600>;
@@ -1430,6 +1449,8 @@
 			clocks = <&gcc GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
 				 <&gcc GCC_QSPI_CORE_CLK>;
 			clock-names = "iface", "core";
+			power-domains = <&rpmhpd SC7180_CX>;
+			operating-points-v2 = <&qspi_opp_table>;
 			status = "disabled";
 		};
 
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

Re: [PATCH v2 01/17] tty: serial: qcom_geni_serial: Use OPP API to set clk/perf state

[Matthias Kaehlcke]

Hi Rajendra,

On Fri, Apr 17, 2020 at 07:34:23PM +0530, Rajendra Nayak wrote:
> geni serial needs to express a perforamnce state requirement on CX
> powerdomain depending on the frequency of the clock rates.
> Use OPP table from DT to register with OPP framework and use
> dev_pm_opp_set_rate() to set the clk/perf state.
> 
> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Akash Asthana <akashast@codeaurora.org>
> Cc: linux-serial@vger.kernel.org
> ---
>  drivers/tty/serial/qcom_geni_serial.c | 30 +++++++++++++++++++++++++-----
>  include/linux/qcom-geni-se.h          |  2 ++
>  2 files changed, 27 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
> index 6119090..151012c 100644
> --- a/drivers/tty/serial/qcom_geni_serial.c
> +++ b/drivers/tty/serial/qcom_geni_serial.c
> @@ -9,6 +9,7 @@
>  #include <linux/module.h>
>  #include <linux/of.h>
>  #include <linux/of_device.h>
> +#include <linux/pm_opp.h>
>  #include <linux/platform_device.h>
>  #include <linux/pm_runtime.h>
>  #include <linux/pm_wakeirq.h>
> @@ -128,6 +129,7 @@ struct qcom_geni_serial_port {
>  	int wakeup_irq;
>  	bool rx_tx_swap;
>  	bool cts_rts_swap;
> +	bool opp_table;

The name of the variable suggests that it holds a OPP table, something
like 'has_opp_table' would be clearer.

>  };
>  
>  static const struct uart_ops qcom_geni_console_pops;
> @@ -961,7 +963,7 @@ static void qcom_geni_serial_set_termios(struct uart_port *uport,
>  		goto out_restart_rx;
>  
>  	uport->uartclk = clk_rate;
> -	clk_set_rate(port->se.clk, clk_rate);
> +	dev_pm_opp_set_rate(uport->dev, clk_rate);
>  	ser_clk_cfg = SER_CLK_EN;
>  	ser_clk_cfg |= clk_div << CLK_DIV_SHFT;
>  
> @@ -1198,8 +1200,11 @@ static void qcom_geni_serial_pm(struct uart_port *uport,
>  	if (new_state == UART_PM_STATE_ON && old_state == UART_PM_STATE_OFF)
>  		geni_se_resources_on(&port->se);
>  	else if (new_state == UART_PM_STATE_OFF &&
> -			old_state == UART_PM_STATE_ON)
> +			old_state == UART_PM_STATE_ON) {
> +		/* Drop the performance state vote */
> +		dev_pm_opp_set_rate(uport->dev, 0);
>  		geni_se_resources_off(&port->se);
> +	}
>  }
>  
>  static const struct uart_ops qcom_geni_console_pops = {
> @@ -1318,13 +1323,20 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
>  	if (of_property_read_bool(pdev->dev.of_node, "cts-rts-swap"))
>  		port->cts_rts_swap = true;
>  
> +	port->se.opp = dev_pm_opp_set_clkname(&pdev->dev, "se");
> +	if (IS_ERR(port->se.opp))
> +		return PTR_ERR(port->se.opp);
> +	/* OPP table is optional */
> +	if (!dev_pm_opp_of_add_table(&pdev->dev))

Even if the OPP table is optional you probably want to fail if the error
is anything other than -ENODEV ("'operating-points' property is not found
or is invalid data in device node.").

> diff --git a/include/linux/qcom-geni-se.h b/include/linux/qcom-geni-se.h
> index dd46494..737e713 100644
> --- a/include/linux/qcom-geni-se.h
> +++ b/include/linux/qcom-geni-se.h
> @@ -24,6 +24,7 @@ enum geni_se_protocol_type {
>  
>  struct geni_wrapper;
>  struct clk;
> +struct opp_table;
>  
>  /**
>   * struct geni_se - GENI Serial Engine
> @@ -39,6 +40,7 @@ struct geni_se {
>  	struct device *dev;
>  	struct geni_wrapper *wrapper;
>  	struct clk *clk;
> +	struct opp_table *opp;

This name suggests that the variable holds a single OPP ('struct
dev_pm_opp'). Most other code uses the name 'opp_table', which
also seems a good candidate here.

Re: [PATCH v2 05/17] drm/msm/dpu: Use OPP API to set clk/perf state

[Matthias Kaehlcke]

Hi Rajendra,

I have essentially the same comments as for "tty: serial: qcom_geni_serial:
Use OPP API to set clk/perf state" (https://patchwork.kernel.org/patch/11495209/).
about error handling of 'dev_pm_opp_of_add_table' and misleading struct
member names 'opp'/'opp_table'. Please apply the requested changes to the
entire series unless you disagree (we can keep the discussion in the patch
referenced above).

On Fri, Apr 17, 2020 at 07:34:27PM +0530, Rajendra Nayak wrote:
> On some qualcomm platforms DPU needs to express a perforamnce state
> requirement on a power domain depennding on the clock rates.
> Use OPP table from DT to register with OPP framework and use
> dev_pm_opp_set_rate() to set the clk/perf state.
> 
> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
> Cc: Rob Clark <robdclark@gmail.com>
> Cc: Sean Paul <sean@poorly.run>
> Cc: dri-devel@lists.freedesktop.org
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c |  3 ++-
>  drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c       | 20 +++++++++++++++++++-
>  drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h       |  4 ++++
>  3 files changed, 25 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> index 11f2beb..fe5717df 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> @@ -7,6 +7,7 @@
>  #include <linux/debugfs.h>
>  #include <linux/errno.h>
>  #include <linux/mutex.h>
> +#include <linux/pm_opp.h>
>  #include <linux/sort.h>
>  #include <linux/clk.h>
>  #include <linux/bitmap.h>
> @@ -239,7 +240,7 @@ static int _dpu_core_perf_set_core_clk_rate(struct dpu_kms *kms, u64 rate)
>  		rate = core_clk->max_rate;
>  
>  	core_clk->rate = rate;
> -	return msm_dss_clk_set_rate(core_clk, 1);
> +	return dev_pm_opp_set_rate(&kms->pdev->dev, core_clk->rate);
>  }
>  
>  static u64 _dpu_core_perf_get_core_clk_rate(struct dpu_kms *kms)
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> index ce19f1d..cfce642 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> @@ -10,6 +10,7 @@
>  #include <linux/debugfs.h>
>  #include <linux/dma-buf.h>
>  #include <linux/of_irq.h>
> +#include <linux/pm_opp.h>
>  
>  #include <drm/drm_crtc.h>
>  #include <drm/drm_file.h>
> @@ -1033,11 +1034,18 @@ static int dpu_bind(struct device *dev, struct device *master, void *data)
>  	if (!dpu_kms)
>  		return -ENOMEM;
>  
> +	dpu_kms->opp = dev_pm_opp_set_clkname(dev, "core");
> +	if (IS_ERR(dpu_kms->opp))
> +		return PTR_ERR(dpu_kms->opp);
> +	/* OPP table is optional */
> +	if (!dev_pm_opp_of_add_table(dev))
> +		dpu_kms->opp_table = true;
> +
>  	mp = &dpu_kms->mp;
>  	ret = msm_dss_parse_clock(pdev, mp);
>  	if (ret) {
>  		DPU_ERROR("failed to parse clocks, ret=%d\n", ret);
> -		return ret;
> +		goto err;
>  	}
>  
>  	platform_set_drvdata(pdev, dpu_kms);
> @@ -1051,6 +1059,11 @@ static int dpu_bind(struct device *dev, struct device *master, void *data)
>  
>  	priv->kms = &dpu_kms->base;
>  	return ret;
> +err:
> +	if (dpu_kms->opp_table)
> +		dev_pm_opp_of_remove_table(dev);
> +	dev_pm_opp_put_clkname(dpu_kms->opp);
> +	return ret;
>  }
>  
>  static void dpu_unbind(struct device *dev, struct device *master, void *data)
> @@ -1059,6 +1072,9 @@ static void dpu_unbind(struct device *dev, struct device *master, void *data)
>  	struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
>  	struct dss_module_power *mp = &dpu_kms->mp;
>  
> +	if (dpu_kms->opp_table)
> +		dev_pm_opp_of_remove_table(dev);
> +	dev_pm_opp_put_clkname(dpu_kms->opp);
>  	msm_dss_put_clk(mp->clk_config, mp->num_clk);
>  	devm_kfree(&pdev->dev, mp->clk_config);
>  	mp->num_clk = 0;
> @@ -1090,6 +1106,8 @@ static int __maybe_unused dpu_runtime_suspend(struct device *dev)
>  	struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
>  	struct dss_module_power *mp = &dpu_kms->mp;
>  
> +	/* Drop the performance state vote */
> +	dev_pm_opp_set_rate(dev, 0);
>  	rc = msm_dss_enable_clk(mp->clk_config, mp->num_clk, false);
>  	if (rc)
>  		DPU_ERROR("clock disable failed rc:%d\n", rc);
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
> index 211f5de9..0060709 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
> @@ -128,6 +128,10 @@ struct dpu_kms {
>  
>  	struct platform_device *pdev;
>  	bool rpm_enabled;
> +
> +	struct opp_table *opp;
> +	bool opp_table;
> +
>  	struct dss_module_power mp;
>  
>  	/* reference count bandwidth requests, so we know when we can
> -- 
> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
> of Code Aurora Forum, hosted by The Linux Foundation

Re: [PATCH v2 01/17] tty: serial: qcom_geni_serial: Use OPP API to set clk/perf state

[Rajendra Nayak]

On 4/17/2020 11:30 PM, Matthias Kaehlcke wrote:
> Hi Rajendra,

Hey Matthias,

> 
> On Fri, Apr 17, 2020 at 07:34:23PM +0530, Rajendra Nayak wrote:
>> geni serial needs to express a perforamnce state requirement on CX
>> powerdomain depending on the frequency of the clock rates.
>> Use OPP table from DT to register with OPP framework and use
>> dev_pm_opp_set_rate() to set the clk/perf state.
>>
>> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
>> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>> Cc: Akash Asthana <akashast@codeaurora.org>
>> Cc: linux-serial@vger.kernel.org
>> ---
>>   drivers/tty/serial/qcom_geni_serial.c | 30 +++++++++++++++++++++++++-----
>>   include/linux/qcom-geni-se.h          |  2 ++
>>   2 files changed, 27 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
>> index 6119090..151012c 100644
>> --- a/drivers/tty/serial/qcom_geni_serial.c
>> +++ b/drivers/tty/serial/qcom_geni_serial.c
>> @@ -9,6 +9,7 @@
>>   #include <linux/module.h>
>>   #include <linux/of.h>
>>   #include <linux/of_device.h>
>> +#include <linux/pm_opp.h>
>>   #include <linux/platform_device.h>
>>   #include <linux/pm_runtime.h>
>>   #include <linux/pm_wakeirq.h>
>> @@ -128,6 +129,7 @@ struct qcom_geni_serial_port {
>>   	int wakeup_irq;
>>   	bool rx_tx_swap;
>>   	bool cts_rts_swap;
>> +	bool opp_table;
> 
> The name of the variable suggests that it holds a OPP table, something
> like 'has_opp_table' would be clearer.

I agree with your suggestions, I will update the variable names when I respin.

> 
>>   };
>>   
>>   static const struct uart_ops qcom_geni_console_pops;
>> @@ -961,7 +963,7 @@ static void qcom_geni_serial_set_termios(struct uart_port *uport,
>>   		goto out_restart_rx;
>>   
>>   	uport->uartclk = clk_rate;
>> -	clk_set_rate(port->se.clk, clk_rate);
>> +	dev_pm_opp_set_rate(uport->dev, clk_rate);
>>   	ser_clk_cfg = SER_CLK_EN;
>>   	ser_clk_cfg |= clk_div << CLK_DIV_SHFT;
>>   
>> @@ -1198,8 +1200,11 @@ static void qcom_geni_serial_pm(struct uart_port *uport,
>>   	if (new_state == UART_PM_STATE_ON && old_state == UART_PM_STATE_OFF)
>>   		geni_se_resources_on(&port->se);
>>   	else if (new_state == UART_PM_STATE_OFF &&
>> -			old_state == UART_PM_STATE_ON)
>> +			old_state == UART_PM_STATE_ON) {
>> +		/* Drop the performance state vote */
>> +		dev_pm_opp_set_rate(uport->dev, 0);
>>   		geni_se_resources_off(&port->se);
>> +	}
>>   }
>>   
>>   static const struct uart_ops qcom_geni_console_pops = {
>> @@ -1318,13 +1323,20 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
>>   	if (of_property_read_bool(pdev->dev.of_node, "cts-rts-swap"))
>>   		port->cts_rts_swap = true;
>>   
>> +	port->se.opp = dev_pm_opp_set_clkname(&pdev->dev, "se");
>> +	if (IS_ERR(port->se.opp))
>> +		return PTR_ERR(port->se.opp);
>> +	/* OPP table is optional */
>> +	if (!dev_pm_opp_of_add_table(&pdev->dev))
> 
> Even if the OPP table is optional you probably want to fail if the error
> is anything other than -ENODEV ("'operating-points' property is not found
> or is invalid data in device node.").

sounds valid. I will fix it up and respin. Will just wait a few days to see if
I get any more reviews and feedback.

> 
>> diff --git a/include/linux/qcom-geni-se.h b/include/linux/qcom-geni-se.h
>> index dd46494..737e713 100644
>> --- a/include/linux/qcom-geni-se.h
>> +++ b/include/linux/qcom-geni-se.h
>> @@ -24,6 +24,7 @@ enum geni_se_protocol_type {
>>   
>>   struct geni_wrapper;
>>   struct clk;
>> +struct opp_table;
>>   
>>   /**
>>    * struct geni_se - GENI Serial Engine
>> @@ -39,6 +40,7 @@ struct geni_se {
>>   	struct device *dev;
>>   	struct geni_wrapper *wrapper;
>>   	struct clk *clk;
>> +	struct opp_table *opp;
> 
> This name suggests that the variable holds a single OPP ('struct
> dev_pm_opp'). Most other code uses the name 'opp_table', which
> also seems a good candidate here.

Agree, thanks again for taking time to review.

-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

Re: [PATCH v2 05/17] drm/msm/dpu: Use OPP API to set clk/perf state

[Rajendra Nayak]

On 4/17/2020 11:47 PM, Matthias Kaehlcke wrote:
> Hi Rajendra,
> 
> I have essentially the same comments as for "tty: serial: qcom_geni_serial:
> Use OPP API to set clk/perf state" (https://patchwork.kernel.org/patch/11495209/).
> about error handling of 'dev_pm_opp_of_add_table' and misleading struct
> member names 'opp'/'opp_table'. Please apply the requested changes to the
> entire series unless you disagree (we can keep the discussion in the patch
> referenced above).

Thanks, yes, I will apply those changes across the series and respin.
Will wait a few days to see I get any more feedback.

-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

Re: [PATCH v2 00/17] DVFS for IO devices on sdm845 and sc7180

[Viresh Kumar]

On 17-04-20, 19:34, Rajendra Nayak wrote:
> Changes in v2:
> 1. Added error handling for dev_pm_opp_set_clkname()
> and dev_pm_opp_of_add_table()
> 2. Used dev_pm_opp_put_clkname() in the cleanup path
> 3. Dropped the OPP patch pulled in by Viresh [1]

This is part of 5.7-rc2 now. Thanks.

-- 
viresh

Re: [PATCH v2 09/17] mmc: sdhci-msm: Use OPP API to set clk/perf state

[Ulf Hansson]

On Fri, 17 Apr 2020 at 16:06, Rajendra Nayak <rnayak@codeaurora.org> wrote:
>
> On some qualcomm SoCs we need to vote on a performance state of a power
> domain depending on the clock rates. Hence move to using OPP api to set
> the clock rate and performance state specified in the OPP table.
> On platforms without an OPP table, dev_pm_opp_set_rate() is eqvivalent to
> clk_set_rate()
>
> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
> Cc: Ulf Hansson <ulf.hansson@linaro.org>
> Cc: Pradeep P V K <ppvk@codeaurora.org>
> Cc: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
> Cc: linux-mmc@vger.kernel.org

Applied for next, thanks!

Kind regards
Uffe

> ---
>  drivers/mmc/host/sdhci-msm.c | 34 +++++++++++++++++++++++++++++-----
>  1 file changed, 29 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
> index 09ff731..cf27480 100644
> --- a/drivers/mmc/host/sdhci-msm.c
> +++ b/drivers/mmc/host/sdhci-msm.c
> @@ -10,6 +10,7 @@
>  #include <linux/delay.h>
>  #include <linux/mmc/mmc.h>
>  #include <linux/pm_runtime.h>
> +#include <linux/pm_opp.h>
>  #include <linux/slab.h>
>  #include <linux/iopoll.h>
>  #include <linux/regulator/consumer.h>
> @@ -243,6 +244,8 @@ struct sdhci_msm_host {
>         struct clk_bulk_data bulk_clks[4]; /* core, iface, cal, sleep clocks */
>         unsigned long clk_rate;
>         struct mmc_host *mmc;
> +       struct opp_table *opp;
> +       bool opp_table;
>         bool use_14lpp_dll_reset;
>         bool tuning_done;
>         bool calibration_done;
> @@ -332,7 +335,7 @@ static void msm_set_clock_rate_for_bus_mode(struct sdhci_host *host,
>         int rc;
>
>         clock = msm_get_clock_rate_for_bus_mode(host, clock);
> -       rc = clk_set_rate(core_clk, clock);
> +       rc = dev_pm_opp_set_rate(mmc_dev(host->mmc), clock);
>         if (rc) {
>                 pr_err("%s: Failed to set clock at rate %u at timing %d\n",
>                        mmc_hostname(host->mmc), clock,
> @@ -1962,8 +1965,18 @@ static int sdhci_msm_probe(struct platform_device *pdev)
>         }
>         msm_host->bulk_clks[0].clk = clk;
>
> +       msm_host->opp = dev_pm_opp_set_clkname(&pdev->dev, "core");
> +       if (IS_ERR(msm_host->opp)) {
> +               ret = PTR_ERR(msm_host->opp);
> +               goto bus_clk_disable;
> +       }
> +
> +       /* OPP table is optional */
> +       if (!dev_pm_opp_of_add_table(&pdev->dev))
> +               msm_host->opp_table = true;
> +
>         /* Vote for maximum clock rate for maximum performance */
> -       ret = clk_set_rate(clk, INT_MAX);
> +       ret = dev_pm_opp_set_rate(&pdev->dev, INT_MAX);
>         if (ret)
>                 dev_warn(&pdev->dev, "core clock boost failed\n");
>
> @@ -1980,7 +1993,7 @@ static int sdhci_msm_probe(struct platform_device *pdev)
>         ret = clk_bulk_prepare_enable(ARRAY_SIZE(msm_host->bulk_clks),
>                                       msm_host->bulk_clks);
>         if (ret)
> -               goto bus_clk_disable;
> +               goto opp_cleanup;
>
>         /*
>          * xo clock is needed for FLL feature of cm_dll.
> @@ -2115,6 +2128,10 @@ static int sdhci_msm_probe(struct platform_device *pdev)
>  clk_disable:
>         clk_bulk_disable_unprepare(ARRAY_SIZE(msm_host->bulk_clks),
>                                    msm_host->bulk_clks);
> +opp_cleanup:
> +       if (msm_host->opp_table)
> +               dev_pm_opp_of_remove_table(&pdev->dev);
> +       dev_pm_opp_put_clkname(msm_host->opp);
>  bus_clk_disable:
>         if (!IS_ERR(msm_host->bus_clk))
>                 clk_disable_unprepare(msm_host->bus_clk);
> @@ -2133,6 +2150,9 @@ static int sdhci_msm_remove(struct platform_device *pdev)
>
>         sdhci_remove_host(host, dead);
>
> +       if (msm_host->opp_table)
> +               dev_pm_opp_of_remove_table(&pdev->dev);
> +       dev_pm_opp_put_clkname(msm_host->opp);
>         pm_runtime_get_sync(&pdev->dev);
>         pm_runtime_disable(&pdev->dev);
>         pm_runtime_put_noidle(&pdev->dev);
> @@ -2151,6 +2171,8 @@ static __maybe_unused int sdhci_msm_runtime_suspend(struct device *dev)
>         struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
>         struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
>
> +       /* Drop the performance vote */
> +       dev_pm_opp_set_rate(dev, 0);
>         clk_bulk_disable_unprepare(ARRAY_SIZE(msm_host->bulk_clks),
>                                    msm_host->bulk_clks);
>
> @@ -2173,9 +2195,11 @@ static __maybe_unused int sdhci_msm_runtime_resume(struct device *dev)
>          * restore the SDR DLL settings when the clock is ungated.
>          */
>         if (msm_host->restore_dll_config && msm_host->clk_rate)
> -               return sdhci_msm_restore_sdr_dll_config(host);
> +               ret = sdhci_msm_restore_sdr_dll_config(host);
>
> -       return 0;
> +       dev_pm_opp_set_rate(dev, msm_host->clk_rate);
> +
> +       return ret;
>  }
>
>  static const struct dev_pm_ops sdhci_msm_pm_ops = {
> --
> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
> of Code Aurora Forum, hosted by The Linux Foundation

Re: [PATCH v2 01/17] tty: serial: qcom_geni_serial: Use OPP API to set clk/perf state

[Rajendra Nayak]

Hey Bjorn,

> diff --git a/include/linux/qcom-geni-se.h b/include/linux/qcom-geni-se.h
> index dd46494..737e713 100644
> --- a/include/linux/qcom-geni-se.h
> +++ b/include/linux/qcom-geni-se.h
> @@ -24,6 +24,7 @@ enum geni_se_protocol_type {
>   
>   struct geni_wrapper;
>   struct clk;
> +struct opp_table;
>   
>   /**
>    * struct geni_se - GENI Serial Engine
> @@ -39,6 +40,7 @@ struct geni_se {
>   	struct device *dev;
>   	struct geni_wrapper *wrapper;
>   	struct clk *clk;
> +	struct opp_table *opp;

I just realized this is going to cause merge issues across geni serial and geni spi
driver (PATCH 02/17 in this series) unless all of this goes via your tree.
I see this is also an issue with the ongoing ICC patch series [1]

Do you or Greg have any thoughts on how this common header across various drivers
issue should be resolved to avoid conflicts while merging?

- Rajendra

[1] https://patchwork.kernel.org/patch/11491015/

-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

Re: [PATCH v2 01/17] tty: serial: qcom_geni_serial: Use OPP API to set clk/perf state

[Greg Kroah-Hartman]

On Wed, Apr 22, 2020 at 02:52:21PM +0530, Rajendra Nayak wrote:
> Hey Bjorn,
> 
> > diff --git a/include/linux/qcom-geni-se.h b/include/linux/qcom-geni-se.h
> > index dd46494..737e713 100644
> > --- a/include/linux/qcom-geni-se.h
> > +++ b/include/linux/qcom-geni-se.h
> > @@ -24,6 +24,7 @@ enum geni_se_protocol_type {
> >   struct geni_wrapper;
> >   struct clk;
> > +struct opp_table;
> >   /**
> >    * struct geni_se - GENI Serial Engine
> > @@ -39,6 +40,7 @@ struct geni_se {
> >   	struct device *dev;
> >   	struct geni_wrapper *wrapper;
> >   	struct clk *clk;
> > +	struct opp_table *opp;
> 
> I just realized this is going to cause merge issues across geni serial and geni spi
> driver (PATCH 02/17 in this series) unless all of this goes via your tree.
> I see this is also an issue with the ongoing ICC patch series [1]
> 
> Do you or Greg have any thoughts on how this common header across various drivers
> issue should be resolved to avoid conflicts while merging?

I can ack it and you can take it through a different tree as part of the
whole series to prevent that.

thanks,

greg k-h