| Message ID | 1377256509-18922-2-git-send-email-yuvaraj.cd@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Yuvaraj, On 08/23/2013 08:15 PM, Yuvaraj Kumar C D wrote: > Currently platform specific private data initialisation is done by > dw_mci_exynos_priv_init and dw_mci_exynos_parse_dt.As we already have > separate platform specific device tree parser dw_mci_exynos_parse_dt, > move the dw_mci_exynos_priv_init code to dw_mci_exynos_parse_dt. > We can use the dw_mci_exynos_priv_init to do some actual platform > specific initialisation of SMU and etc. > > changes since V1: none > > Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com> > --- > drivers/mmc/host/dw_mmc-exynos.c | 31 +++++++++++++++---------------- > 1 file changed, 15 insertions(+), 16 deletions(-) > > diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c > index 9990f98..19c845b 100644 > --- a/drivers/mmc/host/dw_mmc-exynos.c > +++ b/drivers/mmc/host/dw_mmc-exynos.c > @@ -72,22 +72,8 @@ static struct dw_mci_exynos_compatible { > > static int dw_mci_exynos_priv_init(struct dw_mci *host) > { > - struct dw_mci_exynos_priv_data *priv; > - int idx; > - > - priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); > - if (!priv) { > - dev_err(host->dev, "mem alloc failed for private data\n"); > - return -ENOMEM; > - } > - > - for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) { > - if (of_device_is_compatible(host->dev->of_node, > - exynos_compat[idx].compatible)) > - priv->ctrl_type = exynos_compat[idx].ctrl_type; > - } > + struct dw_mci_exynos_priv_data *priv = host->priv; > > - host->priv = priv; > return 0; > } > > @@ -177,12 +163,24 @@ static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios) > > static int dw_mci_exynos_parse_dt(struct dw_mci *host) > { > - struct dw_mci_exynos_priv_data *priv = host->priv; > + struct dw_mci_exynos_priv_data *priv; > struct device_node *np = host->dev->of_node; > u32 timing[2]; > u32 div = 0; > + int idx; > int ret; > > + priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); > + if (!priv) { > + dev_err(host->dev, "mem alloc failed for private data\n"); > + return -ENOMEM; > + } > + > + for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) { > + if (of_device_is_compatible(np, exynos_compat[idx].compatible)) > + priv->ctrl_type = exynos_compat[idx].ctrl_type; > + } > + > of_property_read_u32(np, "samsung,dw-mshc-ciu-div", &div); > priv->ciu_div = div; > > @@ -199,6 +197,7 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host) > return ret; > > priv->ddr_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1], div); > + host->priv = priv; I'm not sure whether my thinking is right or not. if host->pdata is present, then dw_mci_parse_dt() didn't called at dw_mci_probe. then how host->priv set to priv? Best Regards, Jaehoon Chung > return 0; > } > > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Fri, Aug 23, 2013 at 7:14 PM, Jaehoon Chung <jh80.chung@samsung.com> wrote: > Hi Yuvaraj, > > On 08/23/2013 08:15 PM, Yuvaraj Kumar C D wrote: >> Currently platform specific private data initialisation is done by >> dw_mci_exynos_priv_init and dw_mci_exynos_parse_dt.As we already have >> separate platform specific device tree parser dw_mci_exynos_parse_dt, >> move the dw_mci_exynos_priv_init code to dw_mci_exynos_parse_dt. >> We can use the dw_mci_exynos_priv_init to do some actual platform >> specific initialisation of SMU and etc. >> >> changes since V1: none >> >> Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com> >> --- >> drivers/mmc/host/dw_mmc-exynos.c | 31 +++++++++++++++---------------- >> 1 file changed, 15 insertions(+), 16 deletions(-) >> >> diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c >> index 9990f98..19c845b 100644 >> --- a/drivers/mmc/host/dw_mmc-exynos.c >> +++ b/drivers/mmc/host/dw_mmc-exynos.c >> @@ -72,22 +72,8 @@ static struct dw_mci_exynos_compatible { >> >> static int dw_mci_exynos_priv_init(struct dw_mci *host) >> { >> - struct dw_mci_exynos_priv_data *priv; >> - int idx; >> - >> - priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); >> - if (!priv) { >> - dev_err(host->dev, "mem alloc failed for private data\n"); >> - return -ENOMEM; >> - } >> - >> - for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) { >> - if (of_device_is_compatible(host->dev->of_node, >> - exynos_compat[idx].compatible)) >> - priv->ctrl_type = exynos_compat[idx].ctrl_type; >> - } >> + struct dw_mci_exynos_priv_data *priv = host->priv; >> >> - host->priv = priv; >> return 0; >> } >> >> @@ -177,12 +163,24 @@ static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios) >> >> static int dw_mci_exynos_parse_dt(struct dw_mci *host) >> { >> - struct dw_mci_exynos_priv_data *priv = host->priv; >> + struct dw_mci_exynos_priv_data *priv; >> struct device_node *np = host->dev->of_node; >> u32 timing[2]; >> u32 div = 0; >> + int idx; >> int ret; >> >> + priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); >> + if (!priv) { >> + dev_err(host->dev, "mem alloc failed for private data\n"); >> + return -ENOMEM; >> + } >> + >> + for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) { >> + if (of_device_is_compatible(np, exynos_compat[idx].compatible)) >> + priv->ctrl_type = exynos_compat[idx].ctrl_type; >> + } >> + >> of_property_read_u32(np, "samsung,dw-mshc-ciu-div", &div); >> priv->ciu_div = div; >> >> @@ -199,6 +197,7 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host) >> return ret; >> >> priv->ddr_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1], div); >> + host->priv = priv; > > I'm not sure whether my thinking is right or not. > if host->pdata is present, then dw_mci_parse_dt() didn't called at dw_mci_probe. Yes, you are right. > then how host->priv set to priv? Earlier host->priv set to priv in both non-DT and DT case.True, with this patch it does it only in DT case. Is there any platform/board which still uses dw_mmc and its platform extension driver with non DT case? I found a reference of non-DT case where host->pdata is present in dw_mmc-pci.c driver but does not use platform extension driver (exynos/socfpga). > > Best Regards, > Jaehoon Chung > >> return 0; >> } >> >> > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Dear Yuvaraj, On 08/26/2013 06:20 PM, Yuvaraj Kumar wrote: > On Fri, Aug 23, 2013 at 7:14 PM, Jaehoon Chung <jh80.chung@samsung.com> wrote: >> Hi Yuvaraj, >> >> On 08/23/2013 08:15 PM, Yuvaraj Kumar C D wrote: >>> Currently platform specific private data initialisation is done by >>> dw_mci_exynos_priv_init and dw_mci_exynos_parse_dt.As we already have >>> separate platform specific device tree parser dw_mci_exynos_parse_dt, >>> move the dw_mci_exynos_priv_init code to dw_mci_exynos_parse_dt. >>> We can use the dw_mci_exynos_priv_init to do some actual platform >>> specific initialisation of SMU and etc. >>> >>> changes since V1: none >>> >>> Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com> >>> --- >>> drivers/mmc/host/dw_mmc-exynos.c | 31 +++++++++++++++---------------- >>> 1 file changed, 15 insertions(+), 16 deletions(-) >>> >>> diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c >>> index 9990f98..19c845b 100644 >>> --- a/drivers/mmc/host/dw_mmc-exynos.c >>> +++ b/drivers/mmc/host/dw_mmc-exynos.c >>> @@ -72,22 +72,8 @@ static struct dw_mci_exynos_compatible { >>> >>> static int dw_mci_exynos_priv_init(struct dw_mci *host) >>> { >>> - struct dw_mci_exynos_priv_data *priv; >>> - int idx; >>> - >>> - priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); >>> - if (!priv) { >>> - dev_err(host->dev, "mem alloc failed for private data\n"); >>> - return -ENOMEM; >>> - } >>> - >>> - for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) { >>> - if (of_device_is_compatible(host->dev->of_node, >>> - exynos_compat[idx].compatible)) >>> - priv->ctrl_type = exynos_compat[idx].ctrl_type; >>> - } >>> + struct dw_mci_exynos_priv_data *priv = host->priv; >>> >>> - host->priv = priv; >>> return 0; >>> } >>> >>> @@ -177,12 +163,24 @@ static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios) >>> >>> static int dw_mci_exynos_parse_dt(struct dw_mci *host) >>> { >>> - struct dw_mci_exynos_priv_data *priv = host->priv; >>> + struct dw_mci_exynos_priv_data *priv; >>> struct device_node *np = host->dev->of_node; >>> u32 timing[2]; >>> u32 div = 0; >>> + int idx; >>> int ret; >>> >>> + priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); >>> + if (!priv) { >>> + dev_err(host->dev, "mem alloc failed for private data\n"); >>> + return -ENOMEM; >>> + } >>> + >>> + for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) { >>> + if (of_device_is_compatible(np, exynos_compat[idx].compatible)) >>> + priv->ctrl_type = exynos_compat[idx].ctrl_type; >>> + } >>> + >>> of_property_read_u32(np, "samsung,dw-mshc-ciu-div", &div); >>> priv->ciu_div = div; >>> >>> @@ -199,6 +197,7 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host) >>> return ret; >>> >>> priv->ddr_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1], div); >>> + host->priv = priv; >> >> I'm not sure whether my thinking is right or not. >> if host->pdata is present, then dw_mci_parse_dt() didn't called at dw_mci_probe. > Yes, you are right. >> then how host->priv set to priv? > Earlier host->priv set to priv in both non-DT and DT case.True, with > this patch it does it only in DT case. > Is there any platform/board which still uses dw_mmc and its platform > extension driver with non DT case? You're right. i didn't see the extension driver with non DT-case? Then we can also modify the host->pdata into dw_mci_probe(). Best Regards, Jaehoon Chung > I found a reference of non-DT case where host->pdata is present in > dw_mmc-pci.c driver but does not > use platform extension driver (exynos/socfpga). >> >> Best Regards, >> Jaehoon Chung >> >>> return 0; >>> } >>> >>> >> > -- > To unsubscribe from this list: send the line "unsubscribe linux-mmc" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tue, Aug 27, 2013 at 8:04 AM, Jaehoon Chung <jh80.chung@samsung.com> wrote: > Dear Yuvaraj, > > On 08/26/2013 06:20 PM, Yuvaraj Kumar wrote: >> On Fri, Aug 23, 2013 at 7:14 PM, Jaehoon Chung <jh80.chung@samsung.com> wrote: >>> Hi Yuvaraj, >>> >>> On 08/23/2013 08:15 PM, Yuvaraj Kumar C D wrote: >>>> Currently platform specific private data initialisation is done by >>>> dw_mci_exynos_priv_init and dw_mci_exynos_parse_dt.As we already have >>>> separate platform specific device tree parser dw_mci_exynos_parse_dt, >>>> move the dw_mci_exynos_priv_init code to dw_mci_exynos_parse_dt. >>>> We can use the dw_mci_exynos_priv_init to do some actual platform >>>> specific initialisation of SMU and etc. >>>> >>>> changes since V1: none >>>> >>>> Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com> >>>> --- >>>> drivers/mmc/host/dw_mmc-exynos.c | 31 +++++++++++++++---------------- >>>> 1 file changed, 15 insertions(+), 16 deletions(-) >>>> >>>> diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c >>>> index 9990f98..19c845b 100644 >>>> --- a/drivers/mmc/host/dw_mmc-exynos.c >>>> +++ b/drivers/mmc/host/dw_mmc-exynos.c >>>> @@ -72,22 +72,8 @@ static struct dw_mci_exynos_compatible { >>>> >>>> static int dw_mci_exynos_priv_init(struct dw_mci *host) >>>> { >>>> - struct dw_mci_exynos_priv_data *priv; >>>> - int idx; >>>> - >>>> - priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); >>>> - if (!priv) { >>>> - dev_err(host->dev, "mem alloc failed for private data\n"); >>>> - return -ENOMEM; >>>> - } >>>> - >>>> - for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) { >>>> - if (of_device_is_compatible(host->dev->of_node, >>>> - exynos_compat[idx].compatible)) >>>> - priv->ctrl_type = exynos_compat[idx].ctrl_type; >>>> - } >>>> + struct dw_mci_exynos_priv_data *priv = host->priv; >>>> >>>> - host->priv = priv; >>>> return 0; >>>> } >>>> >>>> @@ -177,12 +163,24 @@ static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios) >>>> >>>> static int dw_mci_exynos_parse_dt(struct dw_mci *host) >>>> { >>>> - struct dw_mci_exynos_priv_data *priv = host->priv; >>>> + struct dw_mci_exynos_priv_data *priv; >>>> struct device_node *np = host->dev->of_node; >>>> u32 timing[2]; >>>> u32 div = 0; >>>> + int idx; >>>> int ret; >>>> >>>> + priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); >>>> + if (!priv) { >>>> + dev_err(host->dev, "mem alloc failed for private data\n"); >>>> + return -ENOMEM; >>>> + } >>>> + >>>> + for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) { >>>> + if (of_device_is_compatible(np, exynos_compat[idx].compatible)) >>>> + priv->ctrl_type = exynos_compat[idx].ctrl_type; >>>> + } >>>> + >>>> of_property_read_u32(np, "samsung,dw-mshc-ciu-div", &div); >>>> priv->ciu_div = div; >>>> >>>> @@ -199,6 +197,7 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host) >>>> return ret; >>>> >>>> priv->ddr_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1], div); >>>> + host->priv = priv; >>> >>> I'm not sure whether my thinking is right or not. >>> if host->pdata is present, then dw_mci_parse_dt() didn't called at dw_mci_probe. >> Yes, you are right. >>> then how host->priv set to priv? >> Earlier host->priv set to priv in both non-DT and DT case.True, with >> this patch it does it only in DT case. >> Is there any platform/board which still uses dw_mmc and its platform >> extension driver with non DT case? > You're right. i didn't see the extension driver with non DT-case? > Then we can also modify the host->pdata into dw_mci_probe(). I think its not necessary becuase dw_mmc-pci.c driver calls dw_mci_probe with host->pdata NOT NULL. Only dwmmc platform extension driver (exynos/socfpga) which are basically DT based uses host->priv . > > Best Regards, > Jaehoon Chung >> I found a reference of non-DT case where host->pdata is present in >> dw_mmc-pci.c driver but does not >> use platform extension driver (exynos/socfpga). >>> >>> Best Regards, >>> Jaehoon Chung >>> >>>> return 0; >>>> } >>>> >>>> >>> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c index 9990f98..19c845b 100644 --- a/drivers/mmc/host/dw_mmc-exynos.c +++ b/drivers/mmc/host/dw_mmc-exynos.c @@ -72,22 +72,8 @@ static struct dw_mci_exynos_compatible { static int dw_mci_exynos_priv_init(struct dw_mci *host) { - struct dw_mci_exynos_priv_data *priv; - int idx; - - priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); - if (!priv) { - dev_err(host->dev, "mem alloc failed for private data\n"); - return -ENOMEM; - } - - for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) { - if (of_device_is_compatible(host->dev->of_node, - exynos_compat[idx].compatible)) - priv->ctrl_type = exynos_compat[idx].ctrl_type; - } + struct dw_mci_exynos_priv_data *priv = host->priv; - host->priv = priv; return 0; } @@ -177,12 +163,24 @@ static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios) static int dw_mci_exynos_parse_dt(struct dw_mci *host) { - struct dw_mci_exynos_priv_data *priv = host->priv; + struct dw_mci_exynos_priv_data *priv; struct device_node *np = host->dev->of_node; u32 timing[2]; u32 div = 0; + int idx; int ret; + priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) { + dev_err(host->dev, "mem alloc failed for private data\n"); + return -ENOMEM; + } + + for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) { + if (of_device_is_compatible(np, exynos_compat[idx].compatible)) + priv->ctrl_type = exynos_compat[idx].ctrl_type; + } + of_property_read_u32(np, "samsung,dw-mshc-ciu-div", &div); priv->ciu_div = div; @@ -199,6 +197,7 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host) return ret; priv->ddr_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1], div); + host->priv = priv; return 0; }
Currently platform specific private data initialisation is done by dw_mci_exynos_priv_init and dw_mci_exynos_parse_dt.As we already have separate platform specific device tree parser dw_mci_exynos_parse_dt, move the dw_mci_exynos_priv_init code to dw_mci_exynos_parse_dt. We can use the dw_mci_exynos_priv_init to do some actual platform specific initialisation of SMU and etc. changes since V1: none Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com> --- drivers/mmc/host/dw_mmc-exynos.c | 31 +++++++++++++++---------------- 1 file changed, 15 insertions(+), 16 deletions(-)