dm: tpm: Convert I2C driver to driver model

Convert the tpm_tis_i2c driver to use driver model and update boards which
use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Christophe <Ricard&lt;christophe-h.ricard@st.com>
Reviewed-by: Heiko Schocher <hs@denx.de>

configs/peach-pi_defconfig

@@ -13,6 +13,7 @@ CONFIG_CMD_CROS_EC=y
 CONFIG_CROS_EC=y
 CONFIG_CROS_EC_SPI=y
 CONFIG_CROS_EC_KEYB=y
+CONFIG_DM_TPM=y
 CONFIG_TPM_TIS_I2C=y
 CONFIG_DM_I2C=y
 CONFIG_DM_I2C_COMPAT=y

configs/peach-pit_defconfig

@@ -13,6 +13,7 @@ CONFIG_CMD_CROS_EC=y
 CONFIG_CROS_EC=y
 CONFIG_CROS_EC_SPI=y
 CONFIG_CROS_EC_KEYB=y
+CONFIG_DM_TPM=y
 CONFIG_TPM_TIS_I2C=y
 CONFIG_DM_I2C=y
 CONFIG_DM_I2C_COMPAT=y

configs/snow_defconfig

@@ -18,6 +18,7 @@ CONFIG_DEBUG_UART=y
 CONFIG_DEBUG_UART_S5P=y
 CONFIG_DEBUG_UART_BASE=0x12c30000
 CONFIG_DEBUG_UART_CLOCK=100000000
+CONFIG_DM_TPM=y
 CONFIG_TPM_TIS_I2C=y
 CONFIG_DM_I2C=y
 CONFIG_DM_I2C_COMPAT=y

configs/spring_defconfig

@@ -18,6 +18,7 @@ CONFIG_DEBUG_UART=y
 CONFIG_DEBUG_UART_S5P=y
 CONFIG_DEBUG_UART_BASE=0x12c30000
 CONFIG_DEBUG_UART_CLOCK=100000000
+CONFIG_DM_TPM=y
 CONFIG_TPM_TIS_I2C=y
 CONFIG_DM_I2C=y
 CONFIG_DM_I2C_COMPAT=y

drivers/tpm/tpm_tis_i2c.h

@@ -37,9 +37,6 @@ enum tpm_timeout {
 #define TPM_RSP_SIZE_BYTE	2
 #define TPM_RSP_RC_BYTE		6
 
-/* Max buffer size supported by our tpm */
-#define TPM_DEV_BUFSIZE		1260
-
 enum i2c_chip_type {
 	SLB9635,
 	SLB9645,
@@ -47,17 +44,10 @@ enum i2c_chip_type {
 };
 
 struct tpm_chip {
-	bool inited;
 	int is_open;
-	u8 req_complete_mask;
-	u8 req_complete_val;
-	u8 req_canceled;
-	int irq;
 	int locality;
+	u32 vend_dev;
 	unsigned long timeout_a, timeout_b, timeout_c, timeout_d;  /* msec */
-	unsigned long duration[3];  /* msec */
-	struct udevice *dev;
-	u8 buf[TPM_DEV_BUFSIZE + sizeof(u8)];  /* Max buffer size + addr */
 	enum i2c_chip_type chip_type;
 };
 
@@ -129,8 +119,6 @@ struct tpm_cmd_t {
  */
 #define MAX_COUNT_LONG		50
 
-#define TPM_HEADER_SIZE		10
-
 enum tis_access {
 	TPM_ACCESS_VALID		= 0x80,
 	TPM_ACCESS_ACTIVE_LOCALITY	= 0x20,
@@ -155,10 +143,4 @@ enum tis_status {
 #define	TPM_DATA_FIFO(l)		(0x0005 | ((l) << 4))
 #define	TPM_DID_VID(l)			(0x0006 | ((l) << 4))
 
-/* Extended error numbers from linux (see errno.h) */
-#define ECANCELED	125	/* Operation Canceled */
-
-/* Timer frequency. Corresponds to msec timer resolution */
-#define HZ		1000
-
 #endif

include/fdtdec.h

@@ -154,8 +154,6 @@ enum fdt_compat_id {
 	COMPAT_MAXIM_MAX77686_PMIC,	/* MAX77686 PMIC */
 	COMPAT_GENERIC_SPI_FLASH,	/* Generic SPI Flash chip */
 	COMPAT_MAXIM_98095_CODEC,	/* MAX98095 Codec */
-	COMPAT_INFINEON_SLB9635_TPM,	/* Infineon SLB9635 TPM */
-	COMPAT_INFINEON_SLB9645_TPM,	/* Infineon SLB9645 TPM */
 	COMPAT_SAMSUNG_EXYNOS5_I2C,	/* Exynos5 High Speed I2C Controller */
 	COMPAT_SANDBOX_LCD_SDL,		/* Sandbox LCD emulation with SDL */
 	COMPAT_SAMSUNG_EXYNOS_SYSMMU,	/* Exynos sysmmu */

lib/fdtdec.c

@@ -58,8 +58,6 @@ static const char * const compat_names[COMPAT_COUNT] = {
 	COMPAT(MAXIM_MAX77686_PMIC, "maxim,max77686"),
 	COMPAT(GENERIC_SPI_FLASH, "spi-flash"),
 	COMPAT(MAXIM_98095_CODEC, "maxim,max98095-codec"),
-	COMPAT(INFINEON_SLB9635_TPM, "infineon,slb9635-tpm"),
-	COMPAT(INFINEON_SLB9645_TPM, "infineon,slb9645tt"),
 	COMPAT(SAMSUNG_EXYNOS5_I2C, "samsung,exynos5-hsi2c"),
 	COMPAT(SANDBOX_LCD_SDL, "sandbox,lcd-sdl"),
 	COMPAT(SAMSUNG_EXYNOS_SYSMMU, "samsung,sysmmu-v3.3"),