Merge commit '1d795ddee4f73b2739410f99c22280b00f452187'

* commit '1d795ddee4f73b2739410f99c22280b00f452187':
  soc: rockchip: cpuinfo: optimize error log
  rtc: rockchip: fix the rtc suspend crash
  soc: rockchip: fiq debugger: check "target_cpu" before switch cpu
  clk/rockchip/regmap: rate should not be zero
  mmc: dw_mmc: Fix DM 4GB TF card write data errors in RV1106
  arm64: rk3308_linux_defconfig: enable Rockchip RPMsg
  media: i2c: imx577: fix exposure control range according to datasheet
  arm64: configs: rockchip_linux: change RPMSG config to RPMSG_MBOX

Change-Id: I77072f12b7734da6c0212a715633fee3ee574f65

arch/arm64/configs/rk3308_linux_defconfig

@@ -257,6 +257,8 @@ CONFIG_COMMON_CLK_RK808=y
 # CONFIG_ARM_ARCH_TIMER_EVTSTREAM is not set
 # CONFIG_IOMMU_SUPPORT is not set
 # CONFIG_CPU_PX30 is not set
+CONFIG_RPMSG_ROCKCHIP_SOFTIRQ=y
+CONFIG_RPMSG_VIRTIO=y
 CONFIG_CPU_RK3308=y
 # CONFIG_CPU_RK3328 is not set
 # CONFIG_CPU_RK3368 is not set

arch/arm64/configs/rockchip_linux_defconfig

@@ -501,7 +501,7 @@ CONFIG_MAILBOX=y
 CONFIG_ROCKCHIP_MBOX=y
 CONFIG_ROCKCHIP_IOMMU=y
 CONFIG_ARM_SMMU_V3=y
-CONFIG_RPMSG_ROCKCHIP=y
+CONFIG_RPMSG_ROCKCHIP_MBOX=y
 CONFIG_RPMSG_VIRTIO=y
 CONFIG_CPU_PX30=y
 CONFIG_CPU_RK1808=y

drivers/clk/rockchip/regmap/clk-regmap-fractional-divider.c

@@ -47,6 +47,16 @@ static void clk_regmap_fractional_divider_approximation(struct clk_hw *hw,
 	struct clk_hw *p_parent;
 	unsigned long scale;
 
+	if (!rate) {
+		*m = 0;
+		*n = 1;
+
+		dev_dbg(fd->dev, "%s rate:(%ld) maybe invalid frequency setting!\n",
+			clk_hw_get_name(hw), rate);
+
+		return;
+	}
+
 	p_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
 	if ((rate * 20 > p_rate) && (p_rate % rate != 0)) {
 		p_parent = clk_hw_get_parent(clk_hw_get_parent(hw));

drivers/media/i2c/imx577.c

@@ -62,7 +62,7 @@
 
 #define IMX577_REG_EXPOSURE_H		0x0202
 #define IMX577_REG_EXPOSURE_L		0x0203
-#define	IMX577_EXPOSURE_MIN		4
+#define	IMX577_EXPOSURE_MIN		8
 #define	IMX577_EXPOSURE_STEP		1
 #define IMX577_VTS_MAX			0xffff
 
@@ -2022,7 +2022,7 @@ static int imx577_set_ctrl(struct v4l2_ctrl *ctrl)
 	case V4L2_CID_VBLANK:
 		if (imx577->cur_mode->hdr_mode == NO_HDR) {
 			/* Update max exposure while meeting expected vblanking */
-			max = imx577->cur_mode->height + ctrl->val - 4;
+			max = imx577->cur_mode->height + ctrl->val - 22;
 			__v4l2_ctrl_modify_range(imx577->exposure,
 					 imx577->exposure->minimum, max,
 					 imx577->exposure->step,
@@ -2186,7 +2186,7 @@ static int imx577_initialize_controls(struct imx577 *imx577)
 				IMX577_VTS_MAX - mode->height,
 				1, vblank_def);
 	imx577->cur_vts = mode->vts_def;
-	exposure_max = mode->vts_def - 4;
+	exposure_max = mode->vts_def - 22;
 	imx577->exposure = v4l2_ctrl_new_std(handler, &imx577_ctrl_ops,
 				V4L2_CID_EXPOSURE, IMX577_EXPOSURE_MIN,
 				exposure_max, IMX577_EXPOSURE_STEP,

drivers/mmc/host/dw_mmc.c

@@ -2336,6 +2336,7 @@ static void dw_mci_tasklet_func(struct tasklet_struct *t)
 								((fifo_count >> 17) & 0x7FF) <= RV1106_RAMDON_DATA_SIZE / 4,
 								0, 5000 * USEC_PER_MSEC))
 							data->error = -ETIMEDOUT;
+						udelay(1);
 						dw_mci_reset(host);
 					}
 					send_stop_abort(host, data);

drivers/rtc/rtc-rockchip.c

@@ -555,6 +555,31 @@ static void rockchip_rtc_compensation_delay_work(struct work_struct *work)
 	return;
 }
 
+static bool rockchip_rtc_is_trimed(struct rockchip_rtc *rtc)
+{
+	int ret, comp_done;
+
+	ret = regmap_read(rtc->regmap, RTC_CTRL, &comp_done);
+	if (ret) {
+		pr_err("%s: Failed to read RTC_CTRL: %d\n", __func__, ret);
+		return false;
+	}
+	return (comp_done & CLK32K_COMP_EN) == CLK32K_COMP_EN;
+}
+
+static void rockchip_rtc_trim_start(struct rockchip_rtc *rtc)
+{
+	if (!rockchip_rtc_is_trimed(rtc))
+		queue_delayed_work(system_long_wq, &rtc->trim_work,
+				   msecs_to_jiffies(5000));
+}
+
+static void __maybe_unused rockchip_rtc_trim_close(struct rockchip_rtc *rtc)
+{
+	if (!rockchip_rtc_is_trimed(rtc))
+		cancel_delayed_work_sync(&rtc->trim_work);
+}
+
 /* Enable the alarm if it should be enabled (in case it was disabled to
  * prevent use as a wake source).
  */
@@ -568,6 +593,8 @@ static int rockchip_rtc_suspend(struct device *dev)
 	if (device_may_wakeup(dev))
 		enable_irq_wake(rtc->irq);
 
+	rockchip_rtc_trim_close(rtc);
+
 	if (rtc->grf) {
 		switch (rtc->mode) {
 		case ROCKCHIP_RV1106_RTC:
@@ -610,6 +637,7 @@ static int rockchip_rtc_resume(struct device *dev)
 		dev_err(dev, "Cannot enable clock.\n");
 		return ret;
 	}
+	rockchip_rtc_trim_start(rtc);
 
 	return 0;
 }
@@ -761,7 +789,7 @@ static int rockchip_rtc_probe(struct platform_device *pdev)
 				     rtc->irq);
 
 	INIT_DELAYED_WORK(&rtc->trim_work, rockchip_rtc_compensation_delay_work);
-	queue_delayed_work(system_long_wq, &rtc->trim_work, 3000);
+	rockchip_rtc_trim_start(rtc);
 
 	return devm_rtc_register_device(rtc->rtc);
 }

drivers/soc/rockchip/fiq_debugger/rk_fiq_debugger.c

@@ -763,6 +763,11 @@ static int fiq_debugger_cpu_offine_migrate_fiq(unsigned int cpu)
 	if ((sip_fiq_debugger_is_enabled()) &&
 	    (sip_fiq_debugger_get_target_cpu() == cpu)) {
 		target_cpu = cpumask_any_but(cpu_online_mask, cpu);
+		if (target_cpu >= nr_cpu_ids) {
+			pr_err("%s: migrate fiq fail!\n", __func__);
+			return -EBUSY;
+		}
+
 		sip_fiq_debugger_switch_cpu(target_cpu);
 	}
 

drivers/soc/rockchip/rockchip-cpuinfo.c

@@ -57,12 +57,9 @@ static int rockchip_cpuinfo_probe(struct platform_device *pdev)
 	}
 
 	cell = nvmem_cell_get(dev, "id");
-	if (IS_ERR(cell)) {
-		dev_err(dev, "failed to get id cell: %ld\n", PTR_ERR(cell));
-		if (PTR_ERR(cell) == -EPROBE_DEFER)
-			return PTR_ERR(cell);
-		return PTR_ERR(cell);
-	}
+	if (IS_ERR(cell))
+		return dev_err_probe(dev, PTR_ERR(cell), "failed to get id cell\n");
+
 	efuse_buf = nvmem_cell_read(cell, &len);
 	nvmem_cell_put(cell);
 	if (IS_ERR(efuse_buf))