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led: fixed led driver for is31fl32xx

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PD#154214: fixed led is31fl32xx driver for D605 board

please add CONFIG_LEDS_IS31FL32XX=y on kernel  defconfig

please read Documentation/leds/leds-is31fl32xx.txt
in order to configure dts

Change-Id: Ib9903c5d628fd392bde3787786a4dfb2e90911a6
Signed-off-by: Peipeng Zhao <peipeng.zhao@amlogic.com>
This commit is contained in:
Peipeng Zhao
2017-11-09 14:53:23 +08:00
committed by Jianxin Pan
parent 420cb9b88e
commit d383851245
3 changed files with 126 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

111
Documentation/leds/leds-is31fl32xx.txt Normal file
View File

@@ -0,0 +1,111 @@
dts config for lm3556
========================
&i2c_ao {
status = "okay";
pinctrl-names="default";
pinctrl-0=<&ao_i2c_master_pin2>;
is31fl3236a: is31f3236a@0x78 {
compatible = "issi,is31fl3236";
reg = <0x3c>;
status = "okay";
led1_r {
label="LED1_R";
reg_offset = <24>;
};
led1_g {
label="LED1_G";
reg_offset = <23>;
};
led1_b {
label="LED1_B";
reg_offset = <22>;
};
led2_r {
label="LED2_R";
reg_offset = <21>;
};
led2_g {
label="LED2_G";
reg_offset = <20>;
};
led2_b {
label="LED2_B";
reg_offset = <19>;
};
led3_r {
label="LED3_R";
reg_offset = <18>;
};
led3_g {
label="LED3_G";
reg_offset = <17>;
};
led3_b {
label="LED3_B";
reg_offset = <16>;
};
led4_r {
label="LED4_R";
reg_offset = <15>;
};
led4_g {
label="LED4_G";
reg_offset = <14>;
};
led4_b {
label="LED4_B";
reg_offset = <13>;
};
led5_r {
label="LED5_R";
reg_offset = <36>;
};
led5_g {
label="LED5_G";
reg_offset = <35>;
};
led5_b {
label="LED5_B";
reg_offset = <34>;
};
led6_r {
label="LED6_R";
reg_offset = <33>;
};
led6_g {
label="LED6_G";
reg_offset = <32>;
};
led6_b {
label="LED6_B";
reg_offset = <31>;
};
led7_r {
label="LED7_R";
reg_offset = <30>;
};
led7_g {
label="LED7_G";
reg_offset = <29>;
};
led7_b {
label="LED7_B";
reg_offset = <28>;
};
led8_r {
label="LED8_R";
reg_offset = <27>;
};
led8_g {
label="LED8_G";
reg_offset = <26>;
};
led8_b {
label="LED8_B";
reg_offset = <25>;
};
};
}

4
MAINTAINERS
View File

@@ -14139,3 +14139,7 @@ M: Peipeng Zhao <peipeng.zhao@amlogic.com>
F: sound/soc/codec/amlogic/es7243.c
F: sound/soc/codec/amlogic/es7243.h
F: Documentation/devicetree/bindings/sound/es7243.txt
AMLOGIC LED DRVIER
M: Peipeng Zhao <peipeng.zhao@amlogic.com>
F: Documentation/leds/leds-is31fl32xx.txt

14
drivers/leds/leds-is31fl32xx.c
View File

@@ -84,6 +84,7 @@ struct is31fl32xx_chipdef {
bool pwm_registers_reversed;
u8 led_control_register_base;
u8 enable_bits_per_led_control_register;
u8 pwm_frequency_set_reg;
int (*reset_func)(struct is31fl32xx_priv *priv);
int (*sw_shutdown_func)(struct is31fl32xx_priv *priv, bool enable);
};
@@ -95,6 +96,7 @@ static const struct is31fl32xx_chipdef is31fl3236_cdef = {
.global_control_reg = 0x4a,
.reset_reg = 0x4f,
.pwm_register_base = 0x01,
.pwm_frequency_set_reg = 0x4b,
.led_control_register_base = 0x26,
.enable_bits_per_led_control_register = 1,
};
@@ -308,8 +310,8 @@ static int is31fl32xx_init_regs(struct is31fl32xx_priv *priv)
for (i = 0; i < num_regs; i++) {
ret = is31fl32xx_write(priv,
cdef->led_control_register_base+i,
value);
cdef->led_control_register_base+i,
value);
if (ret)
return ret;
}
@@ -325,6 +327,12 @@ static int is31fl32xx_init_regs(struct is31fl32xx_priv *priv)
return ret;
}
if (cdef->pwm_frequency_set_reg) {
ret = is31fl32xx_write(priv, cdef->pwm_frequency_set_reg, 0x01);
if (ret)
return ret;
}
return 0;
}
@@ -345,7 +353,7 @@ static int is31fl32xx_parse_child_dt(const struct device *dev,
if (of_property_read_string(child, "label", &cdev->name))
cdev->name = child->name;
ret = of_property_read_u32(child, "reg", &reg);
ret = of_property_read_u32(child, "reg_offset", &reg);
if (ret || reg < 1 || reg > led_data->priv->cdef->channels) {
dev_err(dev,
"Child node %s does not have a valid reg property\n",