[PATCH v10 3/8] ata: libahci_platform: move port_map parameters into the AHCI structure

Antoine Ténart
2014-07-18T12:32:49Z

This patch moves force_port_map and mask_port_map into the
ahci_host_priv structure. This allows to modify them into the AHCI
framework. This is needed by the new dt bindings representing ports as
the port_map mask is computed automatically.

Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
---
drivers/ata/ahci.h | 6 +++---
drivers/ata/ahci_da850.c | 3 +--
drivers/ata/ahci_imx.c | 3 +--
drivers/ata/ahci_mvebu.c | 3 +--
drivers/ata/ahci_platform.c | 3 +--
drivers/ata/ahci_st.c | 2 +-
drivers/ata/ahci_sunxi.c | 2 +-
drivers/ata/ahci_xgene.c | 2 +-
drivers/ata/libahci.c | 17 +++++++----------
drivers/ata/libahci_platform.c | 8 ++------
include/linux/ahci_platform.h | 4 +---
11 files changed, 20 insertions(+), 33 deletions(-)

diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 5513296e5e2e..cb8d58926851 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -321,6 +321,8 @@ struct ahci_host_priv {
u32 cap; /* cap to use */
u32 cap2; /* cap2 to use */
u32 port_map; /* port map to use */
+ u32 force_port_map; /* force port map */
+ u32 mask_port_map; /* mask out particular bits */
u32 saved_cap; /* saved initial cap */
u32 saved_cap2; /* saved initial cap2 */
u32 saved_port_map; /* saved initial port_map */
@@ -361,9 +363,7 @@ unsigned int ahci_dev_classify(struct ata_port *ap);
void ahci_fill_cmd_slot(struct ahci_port_priv *pp, unsigned int tag,
u32 opts);
void ahci_save_initial_config(struct device *dev,
- struct ahci_host_priv *hpriv,
- unsigned int force_port_map,
- unsigned int mask_port_map);
+ struct ahci_host_priv *hpriv);
void ahci_init_controller(struct ata_host *host);
int ahci_reset_controller(struct ata_host *host);

diff --git a/drivers/ata/ahci_da850.c b/drivers/ata/ahci_da850.c
index 2b77d53bccf8..33b862b2c5db 100644
--- a/drivers/ata/ahci_da850.c
+++ b/drivers/ata/ahci_da850.c
@@ -85,8 +85,7 @@ static int ahci_da850_probe(struct platform_device *pdev)

da850_sata_init(dev, pwrdn_reg, hpriv->mmio);

- rc = ahci_platform_init_host(pdev, hpriv, &ahci_da850_port_info,
- 0, 0, 0);
+ rc = ahci_platform_init_host(pdev, hpriv, &ahci_da850_port_info, 0);
if (rc)
goto disable_resources;

diff --git a/drivers/ata/ahci_imx.c b/drivers/ata/ahci_imx.c
index cac4360f272a..c8eef2d745d8 100644
--- a/drivers/ata/ahci_imx.c
+++ b/drivers/ata/ahci_imx.c
@@ -454,8 +454,7 @@ static int imx_ahci_probe(struct platform_device *pdev)
reg_val = clk_get_rate(imxpriv->ahb_clk) / 1000;
writel(reg_val, hpriv->mmio + IMX_TIMER1MS);

- ret = ahci_platform_init_host(pdev, hpriv, &ahci_imx_port_info,
- 0, 0, 0);
+ ret = ahci_platform_init_host(pdev, hpriv, &ahci_imx_port_info, 0);
if (ret)
goto disable_sata;

diff --git a/drivers/ata/ahci_mvebu.c b/drivers/ata/ahci_mvebu.c
index fd3dfd733b84..0ba0cf7a9ba9 100644
--- a/drivers/ata/ahci_mvebu.c
+++ b/drivers/ata/ahci_mvebu.c
@@ -88,8 +88,7 @@ static int ahci_mvebu_probe(struct platform_device *pdev)
ahci_mvebu_mbus_config(hpriv, dram);
ahci_mvebu_regret_option(hpriv);

- rc = ahci_platform_init_host(pdev, hpriv, &ahci_mvebu_port_info,
- 0, 0, 0);
+ rc = ahci_platform_init_host(pdev, hpriv, &ahci_mvebu_port_info, 0);
if (rc)
goto disable_resources;

diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index b10d81ddb528..95f9ca82082a 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -60,8 +60,7 @@ static int ahci_probe(struct platform_device *pdev)
if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci"))
hflags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ;

- rc = ahci_platform_init_host(pdev, hpriv, &ahci_port_info,
- hflags, 0, 0);
+ rc = ahci_platform_init_host(pdev, hpriv, &ahci_port_info, hflags);
if (rc)
goto pdata_exit;

diff --git a/drivers/ata/ahci_st.c b/drivers/ata/ahci_st.c
index 2595598df9ce..6767c7790b4a 100644
--- a/drivers/ata/ahci_st.c
+++ b/drivers/ata/ahci_st.c
@@ -166,7 +166,7 @@ static int st_ahci_probe(struct platform_device *pdev)
if (err)
return err;

- err = ahci_platform_init_host(pdev, hpriv, &st_ahci_port_info, 0, 0, 0);
+ err = ahci_platform_init_host(pdev, hpriv, &st_ahci_port_info, 0);
if (err) {
ahci_platform_disable_resources(hpriv);
return err;
diff --git a/drivers/ata/ahci_sunxi.c b/drivers/ata/ahci_sunxi.c
index 02002f125bd4..9f8ff1f9e912 100644
--- a/drivers/ata/ahci_sunxi.c
+++ b/drivers/ata/ahci_sunxi.c
@@ -188,7 +188,7 @@ static int ahci_sunxi_probe(struct platform_device *pdev)
AHCI_HFLAG_NO_PMP | AHCI_HFLAG_YES_NCQ;

rc = ahci_platform_init_host(pdev, hpriv, &ahci_sunxi_port_info,
- hflags, 0, 0);
+ hflags);
if (rc)
goto disable_resources;

diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c
index ee3a3659bd9e..87d39fbe616b 100644
--- a/drivers/ata/ahci_xgene.c
+++ b/drivers/ata/ahci_xgene.c
@@ -487,7 +487,7 @@ static int xgene_ahci_probe(struct platform_device *pdev)
hflags = AHCI_HFLAG_NO_PMP | AHCI_HFLAG_YES_NCQ;

rc = ahci_platform_init_host(pdev, hpriv, &xgene_ahci_port_info,
- hflags, 0, 0);
+ hflags);
if (rc)
goto disable_resources;

diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index d72ce0470309..3c0b623747bd 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -398,10 +398,7 @@ static ssize_t ahci_show_em_supported(struct device *dev,
* LOCKING:
* None.
*/
-void ahci_save_initial_config(struct device *dev,
- struct ahci_host_priv *hpriv,
- unsigned int force_port_map,
- unsigned int mask_port_map)
+void ahci_save_initial_config(struct device *dev, struct ahci_host_priv *hpriv)
{
void __iomem *mmio = hpriv->mmio;
u32 cap, cap2, vers, port_map;
@@ -468,17 +465,17 @@ void ahci_save_initial_config(struct device *dev,
cap &= ~HOST_CAP_FBS;
}

- if (force_port_map && port_map != force_port_map) {
+ if (hpriv->force_port_map && port_map != hpriv->force_port_map) {
dev_info(dev, "forcing port_map 0x%x -> 0x%x\n",
- port_map, force_port_map);
- port_map = force_port_map;
+ port_map, hpriv->force_port_map);
+ port_map = hpriv->force_port_map;
}

- if (mask_port_map) {
+ if (hpriv->mask_port_map) {
dev_warn(dev, "masking port_map 0x%x -> 0x%x\n",
port_map,
- port_map & mask_port_map);
- port_map &= mask_port_map;
+ port_map & hpriv->mask_port_map);
+ port_map &= hpriv->mask_port_map;
}

/* cross check port_map and cap.n_ports */
diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c
index b0077589f065..db9b90d876dd 100644
--- a/drivers/ata/libahci_platform.c
+++ b/drivers/ata/libahci_platform.c
@@ -289,8 +289,6 @@ EXPORT_SYMBOL_GPL(ahci_platform_get_resources);
* @hpriv: ahci-host private data for the host
* @pi_template: template for the ata_port_info to use
* @host_flags: ahci host flags used in ahci_host_priv
- * @force_port_map: param passed to ahci_save_initial_config
- * @mask_port_map: param passed to ahci_save_initial_config
*
* This function does all the usual steps needed to bring up an
* ahci-platform host, note any necessary resources (ie clks, phy, etc.)
@@ -302,9 +300,7 @@ EXPORT_SYMBOL_GPL(ahci_platform_get_resources);
int ahci_platform_init_host(struct platform_device *pdev,
struct ahci_host_priv *hpriv,
const struct ata_port_info *pi_template,
- unsigned long host_flags,
- unsigned int force_port_map,
- unsigned int mask_port_map)
+ unsigned long host_flags)
{
struct device *dev = &pdev->dev;
struct ata_port_info pi = *pi_template;
@@ -322,7 +318,7 @@ int ahci_platform_init_host(struct platform_device *pdev,
pi.private_data = (void *)host_flags;
hpriv->flags |= host_flags;

- ahci_save_initial_config(dev, hpriv, force_port_map, mask_port_map);
+ ahci_save_initial_config(dev, hpriv);

if (hpriv->cap & HOST_CAP_NCQ)
pi.flags |= ATA_FLAG_NCQ;
diff --git a/include/linux/ahci_platform.h b/include/linux/ahci_platform.h
index 6dfd51a04d77..554bcafa7eb4 100644
--- a/include/linux/ahci_platform.h
+++ b/include/linux/ahci_platform.h
@@ -44,9 +44,7 @@ struct ahci_host_priv *ahci_platform_get_resources(
int ahci_platform_init_host(struct platform_device *pdev,
struct ahci_host_priv *hpriv,
const struct ata_port_info *pi_template,
- unsigned long host_flags,
- unsigned int force_port_map,
- unsigned int mask_port_map);
+ unsigned long host_flags);

int ahci_platform_suspend_host(struct device *dev);
int ahci_platform_resume_host(struct device *dev);
--
1.9.1