From: Christophe Ricard <christophe.ricard@gmail.com>
Date: Mon, 1 Dec 2014 18:32:59 +0000 (+0100)
Subject: tpm/tpm_i2c_stm_st33: Remove useless i2c read on interrupt registers
X-Git-Tag: v4.9.8~4835^2~32
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=00820e8207b9b87fe0e34062876696dd6d326b2d;p=platform%2Fkernel%2Flinux-rpi3.git

tpm/tpm_i2c_stm_st33: Remove useless i2c read on interrupt registers

Remove useless i2c read on TPM_INT_ENABLE and TPM_INT_STATUS

Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
---

diff --git a/drivers/char/tpm/tpm_i2c_stm_st33.c b/drivers/char/tpm/tpm_i2c_stm_st33.c
index eb0244a..1d589e0 100644
--- a/drivers/char/tpm/tpm_i2c_stm_st33.c
+++ b/drivers/char/tpm/tpm_i2c_stm_st33.c
@@ -783,10 +783,6 @@ tpm_stm_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
 			goto _tpm_clean_answer;
 		}
 
-		ret = I2C_READ_DATA(tpm_dev, TPM_INT_ENABLE, &intmask, 1);
-		if (ret < 0)
-			goto _tpm_clean_answer;
-
 		intmask |= TPM_INTF_CMD_READY_INT
 			|  TPM_INTF_STS_VALID_INT
 			|  TPM_INTF_DATA_AVAIL_INT;
@@ -801,10 +797,6 @@ tpm_stm_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		if (ret < 0)
 			goto _tpm_clean_answer;
 
-		ret = I2C_READ_DATA(tpm_dev, TPM_INT_STATUS, &intmask, 1);
-		if (ret < 0)
-			goto _tpm_clean_answer;
-
 		chip->vendor.irq = client->irq;
 
 		disable_irq_nosync(chip->vendor.irq);