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firmware: arm_scpi: add support for pre-v1.0 SCPI compatible 

This patch adds new DT match table to setup the support for SCPI protocol
versions prior to v1.0 releases. It also adds "arm,scpi-pre-1.0" to the
SCPI match entry.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This commit is contained in:
Sudeep Holla 2016-10-19 14:51:10 +02:00
parent 42b3178b0a
commit 8358c6b5fc
1 changed files with 9 additions and 0 deletions
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9
drivers/firmware/arm_scpi.c
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@ -871,6 +871,11 @@ static int scpi_alloc_xfer_list(struct device *dev, struct scpi_chan *ch)
return 0; return 0;
} }
static const struct of_device_id legacy_scpi_of_match[] = {
{.compatible = "arm,scpi-pre-1.0"},
{},
};
static int scpi_probe(struct platform_device *pdev) static int scpi_probe(struct platform_device *pdev)
{ {
int count, idx, ret; int count, idx, ret;
@ -883,6 +888,9 @@ static int scpi_probe(struct platform_device *pdev)
if (!scpi_info) if (!scpi_info)
return -ENOMEM; return -ENOMEM;
if (of_match_device(legacy_scpi_of_match, &pdev->dev))
scpi_info->is_legacy = true;
count = of_count_phandle_with_args(np, "mboxes", "#mbox-cells"); count = of_count_phandle_with_args(np, "mboxes", "#mbox-cells");
if (count < 0) { if (count < 0) {
dev_err(dev, "no mboxes property in '%s'\n", np->full_name); dev_err(dev, "no mboxes property in '%s'\n", np->full_name);
@ -984,6 +992,7 @@ static int scpi_probe(struct platform_device *pdev)
static const struct of_device_id scpi_of_match[] = { static const struct of_device_id scpi_of_match[] = {
{.compatible = "arm,scpi"}, {.compatible = "arm,scpi"},
{.compatible = "arm,scpi-pre-1.0"},
{}, {},
}; };