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misc: rk628: reduce power consumption optimization

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Change-Id: Iacc7e206d5b05b2c0ae2bd33ecb70d991739db95
Signed-off-by: Guochun Huang <hero.huang@rock-chips.com>
This commit is contained in:
Guochun Huang
2023-12-19 03:43:59 +00:00
committed by Tao Huang
parent 7b983b2ecf
commit 1677e33dc9
1 changed files with 35 additions and 7 deletions
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42
drivers/misc/rk628/rk628.c
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@@ -488,6 +488,38 @@ static void rk628_set_hdmirx_irq(struct rk628 *rk628, u32 reg, bool enable)
rk628_i2c_write(rk628, reg, RK628D_HDMIRX_IRQ_EN(enable));
}
static void rk628_pwr_consumption_init(struct rk628 *rk628)
{
/* set pin as int function to allow output interrupt */
rk628_i2c_write(rk628, GRF_GPIO3AB_SEL_CON, 0x30002000);
/*
* set unuse pin as GPIO input and
* pull down to reduce power consumption
*/
rk628_i2c_write(rk628, GRF_GPIO2AB_SEL_CON, 0xffff0000);
rk628_i2c_write(rk628, GRF_GPIO2C_SEL_CON, 0xffff0000);
rk628_i2c_write(rk628, GRF_GPIO3AB_SEL_CON, 0x10b0000);
rk628_i2c_write(rk628, GRF_GPIO2C_P_CON, 0x3f0015);
rk628_i2c_write(rk628, GRF_GPIO3A_P_CON, 0xcc0044);
if (!rk628_output_is_hdmi(rk628)) {
u32 mask = SW_OUTPUT_MODE_MASK;
u32 val = SW_OUTPUT_MODE(OUTPUT_MODE_HDMI);
if (rk628->version == RK628F_VERSION) {
mask = SW_HDMITX_EN_MASK;
val = SW_HDMITX_EN(1);
}
/* disable clock/data channel and band gap when hdmitx not work */
rk628_i2c_update_bits(rk628, GRF_SYSTEM_CON0, mask, val);
rk628_i2c_write(rk628, HDMI_PHY_SYS_CTL, 0x17);
rk628_i2c_write(rk628, HDMI_PHY_CHG_PWR, 0x0);
rk628_i2c_update_bits(rk628, GRF_SYSTEM_CON0, mask, 0);
}
}
#ifdef CONFIG_FB
static int rk628_fb_notifier_callback(struct notifier_block *nb,
unsigned long event, void *data)
@@ -504,8 +536,7 @@ static int rk628_fb_notifier_callback(struct notifier_block *nb,
switch (*blank) {
case FB_BLANK_UNBLANK:
rk628_power_on(rk628, true);
/* select int io function */
rk628_i2c_write(rk628, GRF_GPIO3AB_SEL_CON, 0x30002000);
rk628_pwr_consumption_init(rk628);
rk628_cru_init(rk628);
if (rk628_input_is_hdmi(rk628)) {
@@ -1326,9 +1357,7 @@ rk628_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
}
rk628_final_display_route(rk628);
/* select int io function */
rk628_i2c_write(rk628, GRF_GPIO3AB_SEL_CON, 0x30002000);
rk628_pwr_consumption_init(rk628);
#ifdef CONFIG_FB
rk628->fb_nb.notifier_call = rk628_fb_notifier_callback;
@@ -1448,8 +1477,7 @@ static int rk628_resume(struct device *dev)
struct rk628 *rk628 = dev_get_drvdata(dev);
rk628_power_on(rk628, true);
/* select int io function */
rk628_i2c_write(rk628, GRF_GPIO3AB_SEL_CON, 0x30002000);
rk628_pwr_consumption_init(rk628);
rk628_cru_init(rk628);
if (rk628_input_is_hdmi(rk628)) {