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lib: utils/i2c: Use heap in DesignWare and SiFive I2C drivers

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Let's use heap allocation in DesignWare and SiFive I2C drivers
instead of using a fixed size global array.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
This commit is contained in:
Anup Patel 2023-04-19 16:52:44 +05:30 • committed by Anup Patel
parent fa5ad2e6f9
commit 903e88caaf
2 changed files with 20 additions and 27 deletions
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24
lib/utils/i2c/fdt_i2c_dw.c
View file

@ -9,17 +9,12 @@
#include <sbi/riscv_io.h>
#include <sbi/sbi_error.h>
#include <sbi/sbi_heap.h>
#include <sbi/sbi_string.h>
#include <sbi_utils/fdt/fdt_helper.h>
#include <sbi_utils/i2c/dw_i2c.h>
#include <sbi_utils/i2c/fdt_i2c.h>
#define FDT_DW_I2C_ADAPTER_MAX 7
static unsigned int fdt_dw_i2c_adapter_count;
static struct dw_i2c_adapter
fdt_dw_i2c_adapter_array[FDT_DW_I2C_ADAPTER_MAX];
extern struct fdt_i2c_adapter fdt_i2c_adapter_dw;
static int fdt_dw_i2c_init(void *fdt, int nodeoff,
@ -29,23 +24,24 @@ static int fdt_dw_i2c_init(void *fdt, int nodeoff,
struct dw_i2c_adapter *adapter;
u64 addr;
if (fdt_dw_i2c_adapter_count >= FDT_DW_I2C_ADAPTER_MAX)
return SBI_ENOSPC;
adapter = &fdt_dw_i2c_adapter_array[fdt_dw_i2c_adapter_count];
adapter = sbi_zalloc(sizeof(*adapter));
if (!adapter)
return SBI_ENOMEM;
rc = fdt_get_node_addr_size(fdt, nodeoff, 0, &addr, NULL);
if (rc)
if (rc) {
sbi_free(adapter);
return rc;
}
adapter->addr = addr;
adapter->adapter.driver = &fdt_i2c_adapter_dw;
rc = dw_i2c_init(&adapter->adapter, nodeoff);
if (rc)
if (rc) {
sbi_free(adapter);
return rc;
fdt_dw_i2c_adapter_count++;
}
return 0;
}

23
lib/utils/i2c/fdt_i2c_sifive.c
View file

@ -9,12 +9,11 @@
#include <sbi/riscv_io.h>
#include <sbi/sbi_error.h>
#include <sbi/sbi_heap.h>
#include <sbi/sbi_timer.h>
#include <sbi_utils/fdt/fdt_helper.h>
#include <sbi_utils/i2c/fdt_i2c.h>
#define SIFIVE_I2C_ADAPTER_MAX 2
#define SIFIVE_I2C_PRELO 0x00
#define SIFIVE_I2C_PREHI 0x04
#define SIFIVE_I2C_CTR 0x08
@ -47,10 +46,6 @@ struct sifive_i2c_adapter {
struct i2c_adapter adapter;
};
static unsigned int sifive_i2c_adapter_count;
static struct sifive_i2c_adapter
sifive_i2c_adapter_array[SIFIVE_I2C_ADAPTER_MAX];
extern struct fdt_i2c_adapter fdt_i2c_adapter_sifive;
static inline void sifive_i2c_setreg(struct sifive_i2c_adapter *adap,
@ -244,14 +239,15 @@ static int sifive_i2c_init(void *fdt, int nodeoff,
struct sifive_i2c_adapter *adapter;
uint64_t addr;
if (sifive_i2c_adapter_count >= SIFIVE_I2C_ADAPTER_MAX)
return SBI_ENOSPC;
adapter = &sifive_i2c_adapter_array[sifive_i2c_adapter_count];
adapter = sbi_zalloc(sizeof(*adapter));
if (!adapter)
return SBI_ENOMEM;
rc = fdt_get_node_addr_size(fdt, nodeoff, 0, &addr, NULL);
if (rc)
if (rc) {
sbi_free(adapter);
return rc;
}
adapter->addr = addr;
adapter->adapter.driver = &fdt_i2c_adapter_sifive;
@ -259,10 +255,11 @@ static int sifive_i2c_init(void *fdt, int nodeoff,
adapter->adapter.write = sifive_i2c_adapter_write;
adapter->adapter.read = sifive_i2c_adapter_read;
rc = i2c_adapter_add(&adapter->adapter);
if (rc)
if (rc) {
sbi_free(adapter);
return rc;
}
sifive_i2c_adapter_count++;
return 0;
}