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Diffstat (limited to 'meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0095-pwm-and-tach-driver-changes-for-ast2600.patch')
-rw-r--r--meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0095-pwm-and-tach-driver-changes-for-ast2600.patch783
1 files changed, 783 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0095-pwm-and-tach-driver-changes-for-ast2600.patch b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0095-pwm-and-tach-driver-changes-for-ast2600.patch
new file mode 100644
index 000000000..377ec2b36
--- /dev/null
+++ b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0095-pwm-and-tach-driver-changes-for-ast2600.patch
@@ -0,0 +1,783 @@
+From 0301f9b2bc948069aaad2899e15e6c94a07ca818 Mon Sep 17 00:00:00 2001
+From: Ayushi Smriti <smriti.ayushi@intel.com>
+Date: Mon, 2 Mar 2020 22:51:46 +0530
+Subject: [PATCH] pwm and tach driver changes for ast2600
+
+This commit includes additions/changes in driver code
+to support 9 PWM outputs and 9 fan tachometer inputs for
+ast2600
+
+Signed-off-by: Ayushi Smriti <smriti.ayushi@intel.com>
+---
+ drivers/hwmon/aspeed-g6-pwm-tacho.c | 328 +++++++++++++++-------------
+ 1 file changed, 171 insertions(+), 157 deletions(-)
+
+diff --git a/drivers/hwmon/aspeed-g6-pwm-tacho.c b/drivers/hwmon/aspeed-g6-pwm-tacho.c
+index 1894f6ad5edb..1ff788bf1133 100644
+--- a/drivers/hwmon/aspeed-g6-pwm-tacho.c
++++ b/drivers/hwmon/aspeed-g6-pwm-tacho.c
+@@ -64,6 +64,8 @@
+ #define PWM_RISING_FALLING_BIT (8) //pwm falling point bit [7:0]
+ #define PWM_RISING_RISING_BIT (0) //pwm rising point bit [7:0]
+
++#define DEF_PWM_PERIOD 0xff
++
+ #define ASPEED_TACHO_CTRL 0x08 //TACH0 General Register
+ #define ASPEED_TACHO_CTRL_CH(x) ((x * 0x10) + 0x08)
+ #define TACHO_IER BIT(31) //enable tacho interrupt
+@@ -72,8 +74,7 @@
+ #define TACHO_ENABLE BIT(28) //{enable tacho}
+ #define TACHO_DEBOUNCE_BIT (26) //{tacho de-bounce}
+ #define TACHO_DEBOUNCE_MASK (0x3 << 26) //{tacho de-bounce}
+-#define TECHIO_EDGE_MASK (0x3 << 24) //tacho edge}
+-#define TECHIO_EDGE_BIT (24) //tacho edge}
++#define TACHIO_EDGE_BIT (24) /*tacho edge}*/
+ #define TACHO_CLK_DIV_T_MASK (0xf << 20)
+ #define TACHO_CLK_DIV_BIT (20)
+ #define TACHO_THRESHOLD_MASK (0xfffff) //tacho threshold bit
+@@ -102,211 +103,183 @@
+
+ #define MAX_CDEV_NAME_LEN 16
+
++#define DEFAULT_TARGET_PWM_FREQ 25000
++#define DEFAULT_MIN_RPM 2900
++
++#define PWM_FALLING_VALUE 0xff
++
+ struct aspeed_pwm_channel_params {
++ int target_freq;
++ int pwm_freq;
+ int load_wdt_rising_falling_pt;
+ int load_wdt_selection; //0: rising , 1: falling
+ int load_wdt_enable;
+ int duty_sync_enable;
+ int invert_pin;
+- u8 divide_h;
+- u8 divide_l;
+- u8 period;
+ u8 rising;
+ u8 falling;
+ };
+
+ static struct aspeed_pwm_channel_params default_pwm_params[] = {
+ [0] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 1,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [1] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [2] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [3] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [4] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [5] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [6] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [7] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [8] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [9] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [10] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [11] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [12] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [13] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [14] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ [15] = {
++ .target_freq = 25000,
+ .load_wdt_rising_falling_pt = 0x10,
+ .load_wdt_selection = 0,
+ .load_wdt_enable = 0,
+ .duty_sync_enable = 0,
+ .invert_pin = 0,
+- .divide_h = 0x5,
+- .divide_l = 0x6,
+- .period = 0x13, //5% ~~
+ .rising = 0x00,
+- .falling = 0x0a,
++ .falling = PWM_FALLING_VALUE,
+ },
+ };
+
+@@ -318,125 +291,146 @@ static struct aspeed_pwm_channel_params default_pwm_params[] = {
+ * 11: reserved.
+ */
+
++#define F2F_EDGES 0x00
++#define R2R_EDGES 0x01
++#define BOTH_EDGES 0x02
++
+ struct aspeed_tacho_channel_params {
++ u32 min_rpm;
+ int limited_inverse;
+ u16 threshold;
+ u8 tacho_edge;
+ u8 tacho_debounce;
+- u8 divide;
++ u32 divide;
+ };
+
+
+ static struct aspeed_tacho_channel_params default_tacho_params[] = {
+ [0] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [1] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [2] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [3] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [4] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [5] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [6] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [7] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [8] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [9] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [10] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [11] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [12] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [13] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [14] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+ [15] = {
++ .min_rpm = 2900,
+ .limited_inverse = 0,
+ .threshold = 0,
+- .tacho_edge = 0,
++ .tacho_edge = F2F_EDGES,
+ .tacho_debounce = 0,
+ .divide = 8,
+ },
+@@ -501,29 +495,28 @@ static void aspeed_set_pwm_channel_enable(struct regmap *regmap, u8 pwm_channel,
+ static void aspeed_set_fan_tach_ch_enable(struct aspeed_pwm_tachometer_data *priv, u8 fan_tach_ch,
+ bool enable)
+ {
+- u32 i = 0, j;
++ u32 i;
+ u32 divide_val = 0;
++ u32 target_div;
+ u32 reg_value = 0;
+
+ if(enable) {
+- //4 ^ n
+- //check pwm clk and to change tacho devide 25KZ
+- for(i = 0; i < 12; i++) {
++ /*RPM calculation as per ast2600 datasheet*/
++ target_div = (priv->clk_freq * 60 / priv->tacho_channel[fan_tach_ch].min_rpm * 2) / (0xfffff + 1);
++ if (target_div) {
++ for (i = 0; i < 12; i++) {
++ divide_val = BIT(i) * BIT(i);
++ if (divide_val > target_div)
++ break;
++ }
++ } else {
+ divide_val = 1;
+- for (j = 1; j <= i; j++)
+- divide_val *= 4;
+-// printk("i : %d , priv->clk_freq/divide_val %d ",i, priv->clk_freq/divide_val);
+- if((priv->clk_freq/divide_val) < 250000)
+- break;
+ }
+- i--;
+- divide_val = ((1 << i) * (1 << i));
+-// printk("tacho divide_val %d , i %x max tacho clk %d \n", divide_val, i, priv->clk_freq / divide_val);
+- priv->tacho_channel[fan_tach_ch].divide = i;
++ priv->tacho_channel[fan_tach_ch].divide = divide_val;
+
+ reg_value = TACHO_ENABLE |
+- (priv->tacho_channel[fan_tach_ch].tacho_edge << TECHIO_EDGE_BIT) |
+- (priv->tacho_channel[fan_tach_ch].divide << TACHO_CLK_DIV_BIT) |
++ (priv->tacho_channel[fan_tach_ch].tacho_edge << TACHIO_EDGE_BIT) |
++ (i << TACHO_CLK_DIV_BIT) |
+ (priv->tacho_channel[fan_tach_ch].tacho_debounce << TACHO_DEBOUNCE_BIT);
+
+ if(priv->tacho_channel[fan_tach_ch].limited_inverse)
+@@ -541,14 +534,28 @@ static void aspeed_set_pwm_channel_fan_ctrl(struct aspeed_pwm_tachometer_data *p
+ u8 index, u8 fan_ctrl)
+ {
+ u32 duty_value, ctrl_value;
++ u32 div_h, div_l, cal_freq;
+
+ if (fan_ctrl == 0) {
+ aspeed_set_pwm_channel_enable(priv->regmap, index, false);
+ } else {
+- duty_value = (priv->pwm_channel[index].period << PWM_PERIOD_BIT) |
+- (0 << PWM_RISING_RISING_BIT) | (fan_ctrl << PWM_RISING_FALLING_BIT);
++ cal_freq = priv->clk_freq / (DEF_PWM_PERIOD + 1);
++ /*calculate for target frequence*/
++ for (div_l = 0; div_l < 0x100; div_l++) {
++ for (div_h = 0; div_h < 0x10; div_h++) {
++ if ((cal_freq / (BIT(div_h) * (div_l + 1))) < priv->pwm_channel[index].target_freq)
++ break;
++ }
++ if ((cal_freq / (BIT(div_h) * (div_l + 1))) < priv->pwm_channel[index].target_freq)
++ break;
++ }
++
++ priv->pwm_channel[index].pwm_freq = cal_freq / (BIT(div_h) * (div_l + 1));
+
+- ctrl_value = (priv->pwm_channel[index].divide_h << 8) | priv->pwm_channel[index].divide_l;
++ ctrl_value = (div_h << 8) | div_l;
++
++ duty_value = (DEF_PWM_PERIOD << PWM_PERIOD_BIT) |
++ (0 << PWM_RISING_RISING_BIT) | (fan_ctrl << PWM_RISING_FALLING_BIT);
+
+ if (priv->pwm_channel[index].load_wdt_enable) {
+ ctrl_value |= PWM_DUTY_LOAD_AS_WDT_EN;
+@@ -568,13 +575,11 @@ static void aspeed_set_pwm_channel_fan_ctrl(struct aspeed_pwm_tachometer_data *p
+ }
+ }
+
+-#define BOTH_EDGES 0x02 /* 10b */
+-
+ static int aspeed_get_fan_tach_ch_rpm(struct aspeed_pwm_tachometer_data *priv,
+ u8 fan_tach_ch)
+ {
+ u32 raw_data, tach_div, clk_source, val;
+- u8 mode, both;
++ u8 multiplier = 2;
+ int i, retries = 3;
+
+ for(i = 0; i < retries; i++) {
+@@ -587,22 +592,15 @@ static int aspeed_get_fan_tach_ch_rpm(struct aspeed_pwm_tachometer_data *priv,
+ if(raw_data == 0xfffff)
+ return 0;
+
+- tach_div = priv->tacho_channel[fan_tach_ch].divide;
+- /*
+- * We need the mode to determine if the raw_data is double (from
+- * counting both edges).
+- */
+- mode = priv->tacho_channel[fan_tach_ch].tacho_edge;
+- both = (mode & BOTH_EDGES) ? 1 : 0;
+-// printk("clk %ld, raw_data %x , tach_div %x both %x \n", priv->clk_freq, raw_data, tach_div, both);
++ raw_data += 1;
++ tach_div = raw_data * (priv->tacho_channel[fan_tach_ch].divide) * (multiplier);
+
+- tach_div = (tach_div * 2) * (0x1 << both);
+ clk_source = priv->clk_freq;
+
+ if (raw_data == 0)
+ return 0;
+
+- return (clk_source * 60) / (2 * raw_data * tach_div);
++ return (clk_source / tach_div * 60);
+
+ }
+
+@@ -614,19 +612,27 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
+ int ret;
+ struct aspeed_pwm_tachometer_data *priv = dev_get_drvdata(dev);
+ long fan_ctrl;
++ u8 org_falling = priv->pwm_channel[index].falling;
+
+ ret = kstrtol(buf, 10, &fan_ctrl);
+ if (ret != 0)
+ return ret;
+
+- if (fan_ctrl < 0 || fan_ctrl > priv->pwm_channel[index].period)
++ if (fan_ctrl < 0 || fan_ctrl > DEF_PWM_PERIOD)
+ return -EINVAL;
+
+ if (priv->pwm_channel[index].falling == fan_ctrl)
+ return count;
+
+ priv->pwm_channel[index].falling = fan_ctrl;
+- aspeed_set_pwm_channel_fan_ctrl(priv, index, fan_ctrl);
++
++ if (fan_ctrl == 0)
++ aspeed_set_pwm_channel_enable(priv->regmap, index, false);
++ else
++ regmap_update_bits(priv->regmap, ASPEED_PWM_DUTY_CYCLE_CH(index), GENMASK(15, 8), (fan_ctrl << PWM_RISING_FALLING_BIT));
++
++ if (org_falling == 0)
++ aspeed_set_pwm_channel_enable(priv->regmap, index, true);
+
+ return count;
+ }
+@@ -678,40 +684,39 @@ static umode_t fan_dev_is_visible(struct kobject *kobj,
+ return a->mode;
+ }
+
+-static SENSOR_DEVICE_ATTR(pwm0, 0644,
+- show_pwm, set_pwm, 0);
+ static SENSOR_DEVICE_ATTR(pwm1, 0644,
+- show_pwm, set_pwm, 1);
++ show_pwm, set_pwm, 0);
+ static SENSOR_DEVICE_ATTR(pwm2, 0644,
+- show_pwm, set_pwm, 2);
++ show_pwm, set_pwm, 1);
+ static SENSOR_DEVICE_ATTR(pwm3, 0644,
+- show_pwm, set_pwm, 3);
++ show_pwm, set_pwm, 2);
+ static SENSOR_DEVICE_ATTR(pwm4, 0644,
+- show_pwm, set_pwm, 4);
++ show_pwm, set_pwm, 3);
+ static SENSOR_DEVICE_ATTR(pwm5, 0644,
+- show_pwm, set_pwm, 5);
++ show_pwm, set_pwm, 4);
+ static SENSOR_DEVICE_ATTR(pwm6, 0644,
+- show_pwm, set_pwm, 6);
++ show_pwm, set_pwm, 5);
+ static SENSOR_DEVICE_ATTR(pwm7, 0644,
+- show_pwm, set_pwm, 7);
++ show_pwm, set_pwm, 6);
+ static SENSOR_DEVICE_ATTR(pwm8, 0644,
+- show_pwm, set_pwm, 8);
++ show_pwm, set_pwm, 7);
+ static SENSOR_DEVICE_ATTR(pwm9, 0644,
+- show_pwm, set_pwm, 9);
++ show_pwm, set_pwm, 8);
+ static SENSOR_DEVICE_ATTR(pwm10, 0644,
+- show_pwm, set_pwm, 10);
++ show_pwm, set_pwm, 9);
+ static SENSOR_DEVICE_ATTR(pwm11, 0644,
+- show_pwm, set_pwm, 11);
++ show_pwm, set_pwm, 10);
+ static SENSOR_DEVICE_ATTR(pwm12, 0644,
+- show_pwm, set_pwm, 12);
++ show_pwm, set_pwm, 11);
+ static SENSOR_DEVICE_ATTR(pwm13, 0644,
+- show_pwm, set_pwm, 13);
++ show_pwm, set_pwm, 12);
+ static SENSOR_DEVICE_ATTR(pwm14, 0644,
+- show_pwm, set_pwm, 14);
++ show_pwm, set_pwm, 13);
+ static SENSOR_DEVICE_ATTR(pwm15, 0644,
++ show_pwm, set_pwm, 14);
++static SENSOR_DEVICE_ATTR(pwm16, 0644,
+ show_pwm, set_pwm, 15);
+ static struct attribute *pwm_dev_attrs[] = {
+- &sensor_dev_attr_pwm0.dev_attr.attr,
+ &sensor_dev_attr_pwm1.dev_attr.attr,
+ &sensor_dev_attr_pwm2.dev_attr.attr,
+ &sensor_dev_attr_pwm3.dev_attr.attr,
+@@ -727,6 +732,7 @@ static struct attribute *pwm_dev_attrs[] = {
+ &sensor_dev_attr_pwm13.dev_attr.attr,
+ &sensor_dev_attr_pwm14.dev_attr.attr,
+ &sensor_dev_attr_pwm15.dev_attr.attr,
++ &sensor_dev_attr_pwm16.dev_attr.attr,
+ NULL,
+ };
+
+@@ -735,40 +741,39 @@ static const struct attribute_group pwm_dev_group = {
+ .is_visible = pwm_is_visible,
+ };
+
+-static SENSOR_DEVICE_ATTR(fan0_input, 0444,
+- show_rpm, NULL, 0);
+ static SENSOR_DEVICE_ATTR(fan1_input, 0444,
+- show_rpm, NULL, 1);
++ show_rpm, NULL, 0);
+ static SENSOR_DEVICE_ATTR(fan2_input, 0444,
+- show_rpm, NULL, 2);
++ show_rpm, NULL, 1);
+ static SENSOR_DEVICE_ATTR(fan3_input, 0444,
+- show_rpm, NULL, 3);
++ show_rpm, NULL, 2);
+ static SENSOR_DEVICE_ATTR(fan4_input, 0444,
+- show_rpm, NULL, 4);
++ show_rpm, NULL, 3);
+ static SENSOR_DEVICE_ATTR(fan5_input, 0444,
+- show_rpm, NULL, 5);
++ show_rpm, NULL, 4);
+ static SENSOR_DEVICE_ATTR(fan6_input, 0444,
+- show_rpm, NULL, 6);
++ show_rpm, NULL, 5);
+ static SENSOR_DEVICE_ATTR(fan7_input, 0444,
+- show_rpm, NULL, 7);
++ show_rpm, NULL, 6);
+ static SENSOR_DEVICE_ATTR(fan8_input, 0444,
+- show_rpm, NULL, 8);
++ show_rpm, NULL, 7);
+ static SENSOR_DEVICE_ATTR(fan9_input, 0444,
+- show_rpm, NULL, 9);
++ show_rpm, NULL, 8);
+ static SENSOR_DEVICE_ATTR(fan10_input, 0444,
+- show_rpm, NULL, 10);
++ show_rpm, NULL, 9);
+ static SENSOR_DEVICE_ATTR(fan11_input, 0444,
+- show_rpm, NULL, 11);
++ show_rpm, NULL, 10);
+ static SENSOR_DEVICE_ATTR(fan12_input, 0444,
+- show_rpm, NULL, 12);
++ show_rpm, NULL, 11);
+ static SENSOR_DEVICE_ATTR(fan13_input, 0444,
+- show_rpm, NULL, 13);
++ show_rpm, NULL, 12);
+ static SENSOR_DEVICE_ATTR(fan14_input, 0444,
+- show_rpm, NULL, 14);
++ show_rpm, NULL, 13);
+ static SENSOR_DEVICE_ATTR(fan15_input, 0444,
++ show_rpm, NULL, 14);
++static SENSOR_DEVICE_ATTR(fan16_input, 0444,
+ show_rpm, NULL, 15);
+ static struct attribute *fan_dev_attrs[] = {
+- &sensor_dev_attr_fan0_input.dev_attr.attr,
+ &sensor_dev_attr_fan1_input.dev_attr.attr,
+ &sensor_dev_attr_fan2_input.dev_attr.attr,
+ &sensor_dev_attr_fan3_input.dev_attr.attr,
+@@ -784,6 +789,7 @@ static struct attribute *fan_dev_attrs[] = {
+ &sensor_dev_attr_fan13_input.dev_attr.attr,
+ &sensor_dev_attr_fan14_input.dev_attr.attr,
+ &sensor_dev_attr_fan15_input.dev_attr.attr,
++ &sensor_dev_attr_fan16_input.dev_attr.attr,
+ NULL
+ };
+
+@@ -802,14 +808,14 @@ static void aspeed_create_pwm_channel(struct aspeed_pwm_tachometer_data *priv,
+ }
+
+ static void aspeed_create_fan_tach_channel(struct aspeed_pwm_tachometer_data *priv,
+- u8 *fan_tach_ch,
+- int count)
++ u8 *fan_tach_ch, int count, u32 min_rpm)
+ {
+ u8 val, index;
+
+ for (val = 0; val < count; val++) {
+ index = fan_tach_ch[val];
+ priv->fan_tach_present[index] = true;
++ priv->tacho_channel[index].min_rpm = min_rpm;
+ aspeed_set_fan_tach_ch_enable(priv, index, true);
+ }
+ }
+@@ -906,13 +912,19 @@ static int aspeed_pwm_create_fan(struct device *dev,
+ struct aspeed_pwm_tachometer_data *priv)
+ {
+ u8 *fan_tach_ch;
++ u32 fan_min_rpm;
+ u32 pwm_channel;
++ u32 target_pwm_freq;
+ int ret, count;
+
+ ret = of_property_read_u32(child, "reg", &pwm_channel);
+ if (ret)
+ return ret;
+
++ ret = of_property_read_u32(child, "aspeed,target_pwm", &target_pwm_freq);
++ if (ret)
++ target_pwm_freq = DEFAULT_TARGET_PWM_FREQ;
++
+ aspeed_create_pwm_channel(priv, (u8)pwm_channel);
+
+ ret = of_property_count_u8_elems(child, "cooling-levels");
+@@ -935,9 +947,11 @@ static int aspeed_pwm_create_fan(struct device *dev,
+ fan_tach_ch, count);
+ if (ret)
+ return ret;
++ ret = of_property_read_u32(child, "aspeed,min_rpm", &fan_min_rpm);
++ if (ret)
++ fan_min_rpm = DEFAULT_MIN_RPM;
+
+- aspeed_create_fan_tach_channel(priv, fan_tach_ch, count);
+-
++ aspeed_create_fan_tach_channel(priv, fan_tach_ch, count, fan_min_rpm);
+ return 0;
+ }
+
+--
+2.17.1
+
generated by cgit v1.2.3 (git 2.39.0) at 2024-06-29 01:36:36 +0300