diff options
| author | Herve Codina <herve.codina@bootlin.com> | 2024-08-08 10:11:06 +0300 |
|---|---|---|
| committer | Christophe Leroy <christophe.leroy@csgroup.eu> | 2024-09-03 08:49:18 +0300 |
| commit | 572312a5bb49885a6bda4652810bab0319ba89c3 (patch) | |
| tree | ffdde6eea4ecad8667adf5425b9f515e0c0c75bb /drivers/soc/fsl/qe/tsa.c | |
| parent | 9c6c022d1c3ce6e343722b0b7569a00f5b75f0bc (diff) | |
| download | linux-572312a5bb49885a6bda4652810bab0319ba89c3.tar.xz | |
soc: fsl: cpm1: tsa: Introduce tsa_version
Current code handles CPM1 version of TSA.
In order to prepare the support for the QUICC Engine (QE) version of
TSA, introduce tsa_version to identify versions. This will enable the
code to make the distinction between several TSA implementations.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/20240808071132.149251-14-herve.codina@bootlin.com
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Diffstat (limited to 'drivers/soc/fsl/qe/tsa.c')
| -rw-r--r-- | drivers/soc/fsl/qe/tsa.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/soc/fsl/qe/tsa.c b/drivers/soc/fsl/qe/tsa.c index 48a176cece86..297721a0d2b6 100644 --- a/drivers/soc/fsl/qe/tsa.c +++ b/drivers/soc/fsl/qe/tsa.c @@ -114,12 +114,17 @@ struct tsa_tdm { #define TSA_TDMA 0 #define TSA_TDMB 1 +enum tsa_version { + TSA_CPM1 = 1, /* Avoid 0 value */ +}; + struct tsa { struct device *dev; void __iomem *si_regs; void __iomem *si_ram; resource_size_t si_ram_sz; spinlock_t lock; /* Lock for read/modify/write sequence */ + enum tsa_version version; int tdms; /* TSA_TDMx ORed */ struct tsa_tdm tdm[2]; /* TDMa and TDMb */ struct tsa_serial { @@ -685,6 +690,15 @@ static int tsa_probe(struct platform_device *pdev) return -ENOMEM; tsa->dev = &pdev->dev; + tsa->version = (enum tsa_version)(uintptr_t)of_device_get_match_data(&pdev->dev); + switch (tsa->version) { + case TSA_CPM1: + dev_info(tsa->dev, "CPM1 version\n"); + break; + default: + dev_err(tsa->dev, "Unknown version (%d)\n", tsa->version); + return -EINVAL; + } for (i = 0; i < ARRAY_SIZE(tsa->serials); i++) tsa->serials[i].id = i; @@ -746,7 +760,7 @@ static void tsa_remove(struct platform_device *pdev) } static const struct of_device_id tsa_id_table[] = { - { .compatible = "fsl,cpm1-tsa" }, + { .compatible = "fsl,cpm1-tsa", .data = (void *)TSA_CPM1 }, {} /* sentinel */ }; MODULE_DEVICE_TABLE(of, tsa_id_table); |