Re: [PATCH v5 11/13] leds: mt6370: Add MediaTek MT6370 current sink type LED Indicator support
From: Andy Shevchenko <hidden>
Date: 2022-07-15 18:30:25
Also in:
dri-devel, linux-arm-kernel, linux-devicetree, linux-iio, linux-leds, linux-mediatek, linux-pm, linux-usb, lkml
On Fri, Jul 15, 2022 at 1:29 PM ChiaEn Wu [off-list ref] wrote:
From: ChiYuan Huang <redacted> The MediaTek MT6370 is a highly-integrated smart power management IC, which includes a single cell Li-Ion/Li-Polymer switching battery charger, a USB Type-C & Power Delivery (PD) controller, dual Flash LED current sources, a RGB LED driver, a backlight WLED driver, a display bias driver and a general LDO for portable devices. In MediaTek MT6370, there are four channel current-sink RGB LEDs that support hardware pattern for constant current, PWM, and breath mode. Isink4 channel can also be used as a CHG_VIN power good indicator.
...
+ This driver can also be built as a module. If so the module
so, the
+ will be called "leds-mt6370.ko".
No ".ko". Why did you ignore these comments? Please go and fix _everywhere_ in your series. It's basically the rule of thumb, if the reviewer gives a comment against an occurrence of something, go through entire series and check if there are other places like commented one and address them all. ...
+ * Author: Alice Chen [off-list ref]
Strange, the commit message doesn't have a corresponding SoB, why? ...
+#define MT6370_PWM_DUTY 31 +#define MT6372_PMW_DUTY 255
Looks like these are limits by hardware? Check with the datasheet if (BIT(x) - 1) makes more sense here. ...
+ switch (led_no) {
+ case MT6370_LED_ISNK1:
+ sel_field = F_LED1_DUTY;
+ break;
+ case MT6370_LED_ISNK2:
+ sel_field = F_LED2_DUTY;
+ break;
+ case MT6370_LED_ISNK3:
+ sel_field = F_LED3_DUTY;
+ break;
+ default:
+ sel_field = F_LED4_DUTY;Missed break;
+ }
...
+ switch (led_no) {
+ case MT6370_LED_ISNK1:
+ sel_field = F_LED1_FREQ;
+ break;
+ case MT6370_LED_ISNK2:
+ sel_field = F_LED2_FREQ;
+ break;
+ case MT6370_LED_ISNK3:
+ sel_field = F_LED3_FREQ;
+ break;
+ default:
+ sel_field = F_LED4_FREQ;Ditto.
+ }
...
+ switch (led_no) {
+ case MT6370_LED_ISNK1:
+ case MT6370_LED_ISNK2:
+ case MT6370_LED_ISNK3:
+ *base = MT6370_REG_RGB1_TR + led_no * 3;
+ break;
+ default:
+ *base = MT6370_REG_RGB_CHRIND_TR;Ditto. It seems you dropped them for all switch-cases. It's not goot, please restore them back.
+ }
...
+ u8 val[P_MAX_PATTERNS / 2] = {0};
{ } should suffice
+ /*
+ * Pattern list
+ * tr1: byte 0, b'[7: 4]
+ * tr2: byte 0, b'[3: 0]
+ * tf1: byte 1, b'[7: 4]
+ * tf2: byte 1, b'[3: 0]
+ * ton: byte 2, b'[7: 4]
+ * toff: byte 2, b'[3: 0]
+ */
+ for (i = 0; i < P_MAX_PATTERNS; i++) {
+ curr = pattern + i;
+
+ sel_range = i == P_LED_TOFF ? R_LED_TOFF : R_LED_TRFON;
+
+ linear_range_get_selector_within(priv->ranges + sel_range,
+ curr->delta_t, &sel);
+
+ val[i / 2] |= sel << (4 * ((i + 1) % 2));
+ }
+
+ memcpy(pattern_val, val, 3);
+ return 0;
+}...
+out:
out_unlock:
+ mutex_unlock(&priv->lock); + + return ret;
...
+out:
Ditto. And so on.
+ mutex_unlock(&priv->lock); + + return ret;
...
+ sub_led = devm_kzalloc(priv->dev, + sizeof(*sub_led) * MC_CHANNEL_NUM, + GFP_KERNEL);
NIH devm_kcalloc(). Also check if you really need zeroed data.
+ if (!sub_led) + return -ENOMEM;
...
+ ret = fwnode_property_read_u32(child, "color", &color);
+ if (ret) {
+ dev_err(priv->dev,
+ "led %d, no color specified\n",
+ led->index);
+ return ret;return dev_err_probe(...) ; ? Ditto for many places in your entire series.
+ }
...
+ priv = devm_kzalloc(&pdev->dev, + struct_size(priv, leds, count), GFP_KERNEL);
At least one parameter can be placed on the previous line.
+ if (!priv) + return -ENOMEM;
-- With Best Regards, Andy Shevchenko