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spi: pxa2xx: Skip SSP initialization if it's done elsewhere

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If SSP has been enumerated elsewhere, skip its initialization
in pxa2xx_spi_init_pdata().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://msgid.link/r/20240327193138.2385910-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Andy Shevchenko
2024-03-27 21:29:23 +02:00
committed by Mark Brown
parent 7290f1e407
commit bb77c99ee6
1 changed files with 9 additions and 0 deletions
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9
drivers/spi/spi-pxa2xx.c
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@@ -1355,6 +1355,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
struct device *dev = &pdev->dev; struct device *dev = &pdev->dev;
struct device *parent = dev->parent; struct device *parent = dev->parent;
enum pxa_ssp_type type = SSP_UNDEFINED; enum pxa_ssp_type type = SSP_UNDEFINED;
struct ssp_device *ssp = NULL;
const void *match; const void *match;
bool is_lpss_priv; bool is_lpss_priv;
int status; int status;
@@ -1372,6 +1373,10 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
return ERR_PTR(status); return ERR_PTR(status);
type = (enum pxa_ssp_type)value; type = (enum pxa_ssp_type)value;
} else {
ssp = pxa_ssp_request(pdev->id, pdev->name);
if (ssp)
type = ssp->type;
} }
/* Validate the SSP type correctness */ /* Validate the SSP type correctness */
@@ -1394,6 +1399,10 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
pdata->enable_dma = true; pdata->enable_dma = true;
pdata->dma_burst_size = 1; pdata->dma_burst_size = 1;
/* If SSP has been already enumerated, use it */
if (ssp)
return pdata;
status = pxa2xx_spi_init_ssp(pdev, &pdata->ssp, type); status = pxa2xx_spi_init_ssp(pdev, &pdata->ssp, type);
if (status) if (status)
return ERR_PTR(status); return ERR_PTR(status);