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Message-Id: <20170322042609.23525-2-arushisinghal19971997@gmail.com>
Date: Wed, 22 Mar 2017 09:56:07 +0530
From: Arushi Singhal <arushisinghal19971997@...il.com>
To: outreachy-kernel@...glegroups.com
Cc: linux-media@...r.kernel.org, gregkh@...uxfoundation.org,
mchehab@...nel.org, devel@...verdev.osuosl.org,
linux-kernel@...r.kernel.org,
Arushi Singhal <arushisinghal19971997@...il.com>
Subject: [PATCH 1/3] staging: media: Replace a bit shift by a use of BIT.
This patch replaces bit shifting on 1 with the BIT(x) macro.
This was done with coccinelle:
@@
constant c;
@@
-1 << c
+BIT(c)
Signed-off-by: Arushi Singhal <arushisinghal19971997@...il.com>
---
.../staging/media/atomisp/pci/atomisp2/atomisp_cmd.c | 12 ++++++------
.../media/atomisp/pci/atomisp2/atomisp_compat_css20.c | 6 +++---
.../staging/media/atomisp/pci/atomisp2/atomisp_drvfs.c | 6 +++---
.../staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c | 18 +++++++++---------
.../staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c | 2 +-
5 files changed, 22 insertions(+), 22 deletions(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c
index 94bc7938f533..63e79a23fe7e 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c
@@ -194,7 +194,7 @@ static int write_target_freq_to_hw(struct atomisp_device *isp,
if (isp_sspm1 & ISP_FREQ_VALID_MASK) {
dev_dbg(isp->dev, "clearing ISPSSPM1 valid bit.\n");
intel_mid_msgbus_write32(PUNIT_PORT, ISPSSPM1,
- isp_sspm1 & ~(1 << ISP_FREQ_VALID_OFFSET));
+ isp_sspm1 & ~(BIT(ISP_FREQ_VALID_OFFSET)));
}
ratio = (2 * isp->hpll_freq + new_freq / 2) / new_freq - 1;
@@ -207,7 +207,7 @@ static int write_target_freq_to_hw(struct atomisp_device *isp,
intel_mid_msgbus_write32(PUNIT_PORT, ISPSSPM1,
isp_sspm1
| ratio << ISP_REQ_FREQ_OFFSET
- | 1 << ISP_FREQ_VALID_OFFSET
+ | BIT(ISP_FREQ_VALID_OFFSET)
| guar_ratio << ISP_REQ_GUAR_FREQ_OFFSET);
isp_sspm1 = intel_mid_msgbus_read32(PUNIT_PORT, ISPSSPM1);
@@ -417,10 +417,10 @@ void atomisp_msi_irq_init(struct atomisp_device *isp, struct pci_dev *dev)
u16 msg16;
pci_read_config_dword(dev, PCI_MSI_CAPID, &msg32);
- msg32 |= 1 << MSI_ENABLE_BIT;
+ msg32 |= BIT(MSI_ENABLE_BIT);
pci_write_config_dword(dev, PCI_MSI_CAPID, msg32);
- msg32 = (1 << INTR_IER) | (1 << INTR_IIR);
+ msg32 = (BIT(INTR_IER)) | (BIT(INTR_IIR));
pci_write_config_dword(dev, PCI_INTERRUPT_CTRL, msg32);
pci_read_config_word(dev, PCI_COMMAND, &msg16);
@@ -435,7 +435,7 @@ void atomisp_msi_irq_uninit(struct atomisp_device *isp, struct pci_dev *dev)
u16 msg16;
pci_read_config_dword(dev, PCI_MSI_CAPID, &msg32);
- msg32 &= ~(1 << MSI_ENABLE_BIT);
+ msg32 &= ~(BIT(MSI_ENABLE_BIT));
pci_write_config_dword(dev, PCI_MSI_CAPID, msg32);
msg32 = 0x0;
@@ -536,7 +536,7 @@ static void clear_irq_reg(struct atomisp_device *isp)
{
u32 msg_ret;
pci_read_config_dword(isp->pdev, PCI_INTERRUPT_CTRL, &msg_ret);
- msg_ret |= 1 << INTR_IIR;
+ msg_ret |= BIT(INTR_IIR);
pci_write_config_dword(isp->pdev, PCI_INTERRUPT_CTRL, msg_ret);
}
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c
index 2e20a81091f4..a3acd99a02e9 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c
@@ -2017,11 +2017,11 @@ void atomisp_css_input_set_mode(struct atomisp_sub_device *asd,
&asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream_config;
s_config->mode = IA_CSS_INPUT_MODE_TPG;
s_config->source.tpg.mode = IA_CSS_TPG_MODE_CHECKERBOARD;
- s_config->source.tpg.x_mask = (1 << 4) - 1;
+ s_config->source.tpg.x_mask = (BIT(4)) - 1;
s_config->source.tpg.x_delta = -2;
- s_config->source.tpg.y_mask = (1 << 4) - 1;
+ s_config->source.tpg.y_mask = (BIT(4)) - 1;
s_config->source.tpg.y_delta = 3;
- s_config->source.tpg.xy_mask = (1 << 8) - 1;
+ s_config->source.tpg.xy_mask = (BIT(8)) - 1;
return;
}
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_drvfs.c b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_drvfs.c
index fcfe8d7190b0..44736a39cda5 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_drvfs.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_drvfs.c
@@ -44,9 +44,9 @@ struct _iunit_debug {
unsigned int dbgopt;
};
-#define OPTION_BIN_LIST (1<<0)
-#define OPTION_BIN_RUN (1<<1)
-#define OPTION_MEM_STAT (1<<2)
+#define OPTION_BIN_LIST (BIT(0))
+#define OPTION_BIN_RUN (BIT(1))
+#define OPTION_MEM_STAT (BIT(2))
#define OPTION_VALID (OPTION_BIN_LIST \
| OPTION_BIN_RUN \
| OPTION_MEM_STAT)
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c
index 626d2f114d8d..558f3b451eae 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c
@@ -330,11 +330,11 @@ static int atomisp_mrfld_pre_power_down(struct atomisp_device *isp)
* IRQ, if so, waiting for it to be served
*/
pci_read_config_dword(dev, PCI_INTERRUPT_CTRL, &irq);
- irq = irq & 1 << INTR_IIR;
+ irq = irq & BIT(INTR_IIR);
pci_write_config_dword(dev, PCI_INTERRUPT_CTRL, irq);
pci_read_config_dword(dev, PCI_INTERRUPT_CTRL, &irq);
- if (!(irq & (1 << INTR_IIR)))
+ if (!(irq & (BIT(INTR_IIR))))
goto done;
atomisp_store_uint32(MRFLD_INTR_CLEAR_REG, 0xFFFFFFFF);
@@ -347,11 +347,11 @@ static int atomisp_mrfld_pre_power_down(struct atomisp_device *isp)
return -EAGAIN;
} else {
pci_read_config_dword(dev, PCI_INTERRUPT_CTRL, &irq);
- irq = irq & 1 << INTR_IIR;
+ irq = irq & BIT(INTR_IIR);
pci_write_config_dword(dev, PCI_INTERRUPT_CTRL, irq);
pci_read_config_dword(dev, PCI_INTERRUPT_CTRL, &irq);
- if (!(irq & (1 << INTR_IIR))) {
+ if (!(irq & (BIT(INTR_IIR)))) {
atomisp_store_uint32(MRFLD_INTR_ENABLE_REG, 0x0);
goto done;
}
@@ -370,7 +370,7 @@ static int atomisp_mrfld_pre_power_down(struct atomisp_device *isp)
* HW sighting:4568410.
*/
pci_read_config_dword(dev, PCI_INTERRUPT_CTRL, &irq);
- irq &= ~(1 << INTR_IER);
+ irq &= ~(BIT(INTR_IER));
pci_write_config_dword(dev, PCI_INTERRUPT_CTRL, irq);
atomisp_msi_irq_uninit(isp, dev);
@@ -388,7 +388,7 @@ static int atomisp_mrfld_pre_power_down(struct atomisp_device *isp)
void punit_ddr_dvfs_enable(bool enable)
{
int reg = intel_mid_msgbus_read32(PUNIT_PORT, MRFLD_ISPSSDVFS);
- int door_bell = 1 << 8;
+ int door_bell = BIT(8);
int max_wait = 30;
if (enable) {
@@ -726,9 +726,9 @@ int atomisp_csi_lane_config(struct atomisp_device *isp)
pci_read_config_dword(isp->pdev, MRFLD_PCI_CSI_CONTROL, &csi_control);
csi_control &= ~port_config_mask;
csi_control |= (portconfigs[i].code << MRFLD_PORT_CONFIGCODE_SHIFT)
- | (portconfigs[i].lanes[0] ? 0 : (1 << MRFLD_PORT1_ENABLE_SHIFT))
- | (portconfigs[i].lanes[1] ? 0 : (1 << MRFLD_PORT2_ENABLE_SHIFT))
- | (portconfigs[i].lanes[2] ? 0 : (1 << MRFLD_PORT3_ENABLE_SHIFT))
+ | (portconfigs[i].lanes[0] ? 0 : (BIT(MRFLD_PORT1_ENABLE_SHIFT)))
+ | (portconfigs[i].lanes[1] ? 0 : (BIT(MRFLD_PORT2_ENABLE_SHIFT)))
+ | (portconfigs[i].lanes[2] ? 0 : (BIT(MRFLD_PORT3_ENABLE_SHIFT)))
| (((1 << portconfigs[i].lanes[0]) - 1) << MRFLD_PORT1_LANES_SHIFT)
| (((1 << portconfigs[i].lanes[1]) - 1) << MRFLD_PORT2_LANES_SHIFT)
| (((1 << portconfigs[i].lanes[2]) - 1) << port3_lanes_shift);
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c b/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c
index 82593ef35b2d..d3a9c1690b62 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c
@@ -1232,7 +1232,7 @@ int hmm_bo_bind(struct hmm_buffer_object *bo)
page_to_phys(bo->page_obj[i].page), 1);
if (ret)
goto map_err;
- virt += (1 << PAGE_SHIFT);
+ virt += (BIT(PAGE_SHIFT));
}
/*
--
2.11.0
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