A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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input: optimize nt36672c touch spi timing

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input:
modify nt36672c CS Hold Time to meet spec requirement.

Change-Id: I9f24cee977f70fab7dec22e11cb6d71c4a1b61cc
Reviewed-on: https://gerrit.mot.com/2435678
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Jun Weng <wengjun1@motorola.com>
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
Xiaojun Lv 2022-11-22 17:42:09 +08:00 • committed by lvxj4
commit ccaf3c7f3c
3 changed files with 28 additions and 0 deletions
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4
drivers/input/touchscreen/nova_0flash_mmi/Android.mk
View file

@ -79,6 +79,10 @@ ifeq ($(GTP_ENABLE_DDA_STYLUS),true)
KBUILD_OPTIONS += CONFIG_GTP_DDA_STYLUS=y
endif
ifeq ($(NVT_SPI_TIMING_CTRL),true)
KBUILD_OPTIONS += CONFIG_SPI_SM8450=y
endif
include $(CLEAR_VARS)
ifneq ($(BOARD_USES_DOUBLE_TAP),)
LOCAL_ADDITIONAL_DEPENDENCIES += $(KERNEL_MODULES_OUT)/sensors_class.ko

4
drivers/input/touchscreen/nova_0flash_mmi/Kbuild
View file

@ -60,6 +60,10 @@ ifneq ($(filter m y, $(CONFIG_BOARD_USES_DOUBLE_TAP_CTRL)),)
EXTRA_CFLAGS += -DCONFIG_BOARD_USES_DOUBLE_TAP_CTRL
endif
ifneq ($(filter m y, $(CONFIG_SPI_SM8450)),)
EXTRA_CFLAGS += -DCONFIG_SPI_SM8450
endif
nova_0flash_mmi-objs += nt36xxx.o
nova_0flash_mmi-objs += nt36xxx_ext_proc.o
nova_0flash_mmi-objs += nt36xxx_fw_update.o

20
drivers/input/touchscreen/nova_0flash_mmi/nt36xxx.c
View file

@ -26,6 +26,7 @@
#include <linux/of_irq.h>
#include <linux/power_supply.h>
#include <linux/version.h>
#include <linux/spi/spi-msm-geni.h>
#ifndef CONFIG_INPUT_TOUCHSCREEN_MMI
#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(5, 4, 0)) || defined(NVT_CONFIG_DRM_PANEL))
@ -2752,6 +2753,7 @@ return:
static int32_t nvt_ts_probe(struct spi_device *client)
{
int32_t ret = 0;
struct spi_geni_qcom_ctrl_data *spi_param = NULL;
#if ((TOUCH_KEY_NUM > 0) || WAKEUP_GESTURE)
int32_t retry = 0;
#endif
@ -2797,6 +2799,13 @@ static int32_t nvt_ts_probe(struct spi_device *client)
goto err_malloc_rbuf;
}
spi_param = devm_kzalloc(&client->dev, sizeof(spi_param), GFP_KERNEL);
if(spi_param == NULL) {
NVT_ERR("devm_kzalloc for spi_param failed!\n");
ret = -ENOMEM;
goto err_malloc_spi_param;
}
ts->client = client;
spi_set_drvdata(client, ts);
@ -2828,6 +2837,12 @@ static int32_t nvt_ts_probe(struct spi_device *client)
ts->client->controller_data = (void *)&ts->spi_ctrl;
#endif
#ifdef CONFIG_SPI_SM8450
/* Initialize the driver data */
spi_param->spi_cs_clk_delay = 2;
client->controller_data = spi_param;
#endif
NVT_LOG("mode=%d, max_speed_hz=%d\n", ts->client->mode, ts->client->max_speed_hz);
//---parse dts---
@ -3289,6 +3304,11 @@ err_gpio_config_failed:
err_spi_setup:
err_ckeck_full_duplex:
spi_set_drvdata(client, NULL);
if (spi_param) {
devm_kfree(&client->dev ,spi_param);
spi_param = NULL;
}
err_malloc_spi_param:
if (ts->rbuf) {
kfree(ts->rbuf);
ts->rbuf = NULL;