From: Dmitry Osipenko <digetx@gmail.com>
To: "Thierry Reding" <thierry.reding@gmail.com>,
"Jonathan Hunter" <jonathanh@nvidia.com>,
"Laxman Dewangan" <ldewangan@nvidia.com>,
"Wolfram Sang" <wsa@the-dreams.de>,
"Michał Mirosław" <mirq-linux@rere.qmqm.pl>,
"Andy Shevchenko" <andy.shevchenko@gmail.com>
Cc: linux-i2c@vger.kernel.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v3 20/22] i2c: tegra: Remove "dma" variable
Date: Thu, 3 Sep 2020 03:52:58 +0300 [thread overview]
Message-ID: <20200903005300.7894-21-digetx@gmail.com> (raw)
In-Reply-To: <20200903005300.7894-1-digetx@gmail.com>
The "dma" variable of tegra_i2c_xfer_msg() function doesn't bring much in
regards to readability and generation of the code, hence let's remove it
to clean up code a tad.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/i2c/busses/i2c-tegra.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index d39d66621199..79caf87bb4c0 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -1190,7 +1190,6 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
unsigned long time_left, xfer_time = 100;
size_t xfer_size;
u32 int_mask;
- bool dma;
int err;
err = tegra_i2c_flush_fifos(i2c_dev);
@@ -1215,7 +1214,7 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
!i2c_dev->is_curr_atomic_xfer;
tegra_i2c_config_fifo_trig(i2c_dev, xfer_size);
- dma = i2c_dev->is_curr_dma_xfer;
+
/*
* Transfer time in mSec = Total bits / transfer rate
* Total bits = 9 bits per byte (including ACK bit) + Start & stop bits
@@ -1226,7 +1225,7 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
int_mask = I2C_INT_NO_ACK | I2C_INT_ARBITRATION_LOST;
tegra_i2c_unmask_irq(i2c_dev, int_mask);
- if (dma) {
+ if (i2c_dev->is_curr_dma_xfer) {
if (i2c_dev->msg_read) {
dma_sync_single_for_device(i2c_dev->dev,
i2c_dev->dma_phys,
@@ -1251,7 +1250,7 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
tegra_i2c_push_packet_header(i2c_dev, msg, end_state);
if (!i2c_dev->msg_read) {
- if (dma) {
+ if (i2c_dev->is_curr_dma_xfer) {
memcpy(i2c_dev->dma_buf, msg->buf, msg->len);
dma_sync_single_for_device(i2c_dev->dev,
@@ -1273,7 +1272,7 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
if (i2c_dev->hw->has_per_pkt_xfer_complete_irq)
int_mask |= I2C_INT_PACKET_XFER_COMPLETE;
- if (!dma) {
+ if (!i2c_dev->is_curr_dma_xfer) {
if (msg->flags & I2C_M_RD)
int_mask |= I2C_INT_RX_FIFO_DATA_REQ;
else if (i2c_dev->msg_buf_remaining)
@@ -1284,7 +1283,7 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
dev_dbg(i2c_dev->dev, "unmasked IRQ: %02x\n",
i2c_readl(i2c_dev, I2C_INT_MASK));
- if (dma) {
+ if (i2c_dev->is_curr_dma_xfer) {
time_left = tegra_i2c_wait_completion(i2c_dev,
&i2c_dev->dma_complete,
xfer_time);
--
2.27.0
next prev parent reply other threads:[~2020-09-03 0:54 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-03 0:52 [PATCH v3 00/22] Improvements for Tegra I2C driver Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 01/22] i2c: tegra: Make tegra_i2c_flush_fifos() usable in atomic transfer Dmitry Osipenko
2020-09-03 11:02 ` Andy Shevchenko
2020-09-03 13:49 ` Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 02/22] i2c: tegra: Add missing newline before returns Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 03/22] i2c: tegra: Clean up messages in the code Dmitry Osipenko
2020-09-03 11:06 ` Andy Shevchenko
2020-09-03 13:44 ` Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 04/22] i2c: tegra: Don't ignore tegra_i2c_flush_fifos() error Dmitry Osipenko
2020-09-03 11:09 ` Andy Shevchenko
2020-09-03 13:54 ` Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 05/22] i2c: tegra: Use reset_control_reset() Dmitry Osipenko
2020-09-03 11:11 ` Andy Shevchenko
2020-09-03 13:47 ` Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 06/22] i2c: tegra: Improve formatting of function variables Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 07/22] i2c: tegra: Use dev_err_probe() Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 08/22] i2c: tegra: Runtime PM always available on Tegra Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 09/22] i2c: tegra: Clean up probe function Dmitry Osipenko
2020-09-03 11:17 ` Andy Shevchenko
2020-09-03 13:48 ` Dmitry Osipenko
2020-09-03 14:02 ` Andy Shevchenko
2020-09-03 15:56 ` Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 10/22] i2c: tegra: Drop '_timeout' from wait/poll function names Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 11/22] i2c: tegra: Remove likely/unlikely from the code Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 12/22] i2c: tegra: Factor out error recovery from tegra_i2c_xfer_msg() Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 13/22] i2c: tegra: Check errors for both positive and negative values Dmitry Osipenko
2020-09-03 11:19 ` Andy Shevchenko
2020-09-03 0:52 ` [PATCH v3 14/22] i2c: tegra: Improve coding style of tegra_i2c_wait_for_config_load() Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 15/22] i2c: tegra: Clean up whitespaces and newlines Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 16/22] i2c: tegra: Rename variable in tegra_i2c_issue_bus_clear() Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 17/22] i2c: tegra: Improve driver module description Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 18/22] i2c: tegra: Reorder location of functions in the code Dmitry Osipenko
2020-09-03 0:52 ` [PATCH v3 19/22] i2c: tegra: Factor out packet header setup from tegra_i2c_xfer_msg() Dmitry Osipenko
2020-09-03 0:52 ` Dmitry Osipenko [this message]
2020-09-03 0:52 ` [PATCH v3 21/22] i2c: tegra: Initialization div-clk rate unconditionally Dmitry Osipenko
2020-09-03 0:53 ` [PATCH v3 22/22] i2c: tegra: Remove i2c_dev.clk_divisor_non_hs_mode member Dmitry Osipenko
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