diff options
author | Wolfram Sang <wsa@the-dreams.de> | 2018-10-11 23:07:30 +0200 |
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committer | Wolfram Sang <wsa@the-dreams.de> | 2018-10-11 23:07:30 +0200 |
commit | 90fb814b6c025da45f71db1703cffe3fe87f575c (patch) | |
tree | 5fd739d407654df6f9d6e82900a45e027dd8b9f0 /drivers/i2c/busses | |
parent | i2c: designware: Set IRQF_NO_SUSPEND flag for all BYT and CHT controllers (diff) | |
parent | Linux 4.19-rc7 (diff) | |
download | linux-90fb814b6c025da45f71db1703cffe3fe87f575c.tar.xz linux-90fb814b6c025da45f71db1703cffe3fe87f575c.zip |
Merge tag 'v4.19-rc7' into i2c/for-4.20
This is the 4.19-rc7 release
Diffstat (limited to 'drivers/i2c/busses')
-rw-r--r-- | drivers/i2c/busses/i2c-designware-master.c | 4 | ||||
-rw-r--r-- | drivers/i2c/busses/i2c-isch.c | 2 | ||||
-rw-r--r-- | drivers/i2c/busses/i2c-qcom-geni.c | 22 | ||||
-rw-r--r-- | drivers/i2c/busses/i2c-scmi.c | 1 |
4 files changed, 23 insertions, 6 deletions
diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c index 2a630ac35ba2..8d1bc44d2530 100644 --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -34,11 +34,11 @@ static void i2c_dw_configure_fifo_master(struct dw_i2c_dev *dev) static int i2c_dw_set_timings_master(struct dw_i2c_dev *dev) { - u32 ic_clk = i2c_dw_clk_rate(dev); const char *mode_str, *fp_str = ""; u32 comp_param1; u32 sda_falling_time, scl_falling_time; struct i2c_timings *t = &dev->timings; + u32 ic_clk; int ret; ret = i2c_dw_acquire_lock(dev); @@ -53,6 +53,7 @@ static int i2c_dw_set_timings_master(struct dw_i2c_dev *dev) /* Calculate SCL timing parameters for standard mode if not set */ if (!dev->ss_hcnt || !dev->ss_lcnt) { + ic_clk = i2c_dw_clk_rate(dev); dev->ss_hcnt = i2c_dw_scl_hcnt(ic_clk, 4000, /* tHD;STA = tHIGH = 4.0 us */ @@ -89,6 +90,7 @@ static int i2c_dw_set_timings_master(struct dw_i2c_dev *dev) * needed also in high speed mode. */ if (!dev->fs_hcnt || !dev->fs_lcnt) { + ic_clk = i2c_dw_clk_rate(dev); dev->fs_hcnt = i2c_dw_scl_hcnt(ic_clk, 600, /* tHD;STA = tHIGH = 0.6 us */ diff --git a/drivers/i2c/busses/i2c-isch.c b/drivers/i2c/busses/i2c-isch.c index 0cf1379f4e80..5c754bf659e2 100644 --- a/drivers/i2c/busses/i2c-isch.c +++ b/drivers/i2c/busses/i2c-isch.c @@ -164,7 +164,7 @@ static s32 sch_access(struct i2c_adapter *adap, u16 addr, * run ~75 kHz instead which should do no harm. */ dev_notice(&sch_adapter.dev, - "Clock divider unitialized. Setting defaults\n"); + "Clock divider uninitialized. Setting defaults\n"); outw(backbone_speed / (4 * 100), SMBHSTCLK); } diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index 36732eb688a4..9f2eb02481d3 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -367,20 +367,26 @@ static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, dma_addr_t rx_dma; enum geni_se_xfer_mode mode; unsigned long time_left = XFER_TIMEOUT; + void *dma_buf; gi2c->cur = msg; - mode = msg->len > 32 ? GENI_SE_DMA : GENI_SE_FIFO; + mode = GENI_SE_FIFO; + dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (dma_buf) + mode = GENI_SE_DMA; + geni_se_select_mode(&gi2c->se, mode); writel_relaxed(msg->len, gi2c->se.base + SE_I2C_RX_TRANS_LEN); geni_se_setup_m_cmd(&gi2c->se, I2C_READ, m_param); if (mode == GENI_SE_DMA) { int ret; - ret = geni_se_rx_dma_prep(&gi2c->se, msg->buf, msg->len, + ret = geni_se_rx_dma_prep(&gi2c->se, dma_buf, msg->len, &rx_dma); if (ret) { mode = GENI_SE_FIFO; geni_se_select_mode(&gi2c->se, mode); + i2c_put_dma_safe_msg_buf(dma_buf, msg, false); } } @@ -393,6 +399,7 @@ static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, if (gi2c->err) geni_i2c_rx_fsm_rst(gi2c); geni_se_rx_dma_unprep(&gi2c->se, rx_dma, msg->len); + i2c_put_dma_safe_msg_buf(dma_buf, msg, !gi2c->err); } return gi2c->err; } @@ -403,20 +410,26 @@ static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, dma_addr_t tx_dma; enum geni_se_xfer_mode mode; unsigned long time_left; + void *dma_buf; gi2c->cur = msg; - mode = msg->len > 32 ? GENI_SE_DMA : GENI_SE_FIFO; + mode = GENI_SE_FIFO; + dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (dma_buf) + mode = GENI_SE_DMA; + geni_se_select_mode(&gi2c->se, mode); writel_relaxed(msg->len, gi2c->se.base + SE_I2C_TX_TRANS_LEN); geni_se_setup_m_cmd(&gi2c->se, I2C_WRITE, m_param); if (mode == GENI_SE_DMA) { int ret; - ret = geni_se_tx_dma_prep(&gi2c->se, msg->buf, msg->len, + ret = geni_se_tx_dma_prep(&gi2c->se, dma_buf, msg->len, &tx_dma); if (ret) { mode = GENI_SE_FIFO; geni_se_select_mode(&gi2c->se, mode); + i2c_put_dma_safe_msg_buf(dma_buf, msg, false); } } @@ -432,6 +445,7 @@ static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, if (gi2c->err) geni_i2c_tx_fsm_rst(gi2c); geni_se_tx_dma_unprep(&gi2c->se, tx_dma, msg->len); + i2c_put_dma_safe_msg_buf(dma_buf, msg, !gi2c->err); } return gi2c->err; } diff --git a/drivers/i2c/busses/i2c-scmi.c b/drivers/i2c/busses/i2c-scmi.c index a01389b85f13..7e9a2bbf5ddc 100644 --- a/drivers/i2c/busses/i2c-scmi.c +++ b/drivers/i2c/busses/i2c-scmi.c @@ -152,6 +152,7 @@ acpi_smbus_cmi_access(struct i2c_adapter *adap, u16 addr, unsigned short flags, mt_params[3].type = ACPI_TYPE_INTEGER; mt_params[3].integer.value = len; mt_params[4].type = ACPI_TYPE_BUFFER; + mt_params[4].buffer.length = len; mt_params[4].buffer.pointer = data->block + 1; } break; |